15-1
Section Fifteen
Distributed I/O
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1790 CompactBlock LDX, 1791D CompactBlock I/O Blocks
. . . . . . . . .
1791 Standard I/O Blocks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1792 ArmorBlock I/O Blocks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1734 POINT I/O Modules
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1734 DeviceNet I/O Communication Interface Modules
. . . . . . . . . . . . . . . .
1734 POINT I/O Module Selection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1793 FLEX Integra and 1794 FLEX I/O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1794 I/O Adapter Modules for FLEX Integra and FLEX I/O
. . . . . . . . . . . . . .
1793 FLEX Integra I/O Modules
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1794 FLEX I/O Modules
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FLEX I/O Communication Modules
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1794 FLEX I/O Terminal Bases and Extender Cables
. . . . . . . . . . . . . . . . . .
1794 FLEX I/O Power Supplies
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1794 Power Requirements and Transformer Sizing
. . . . . . . . . . . . . . . . . . . .
1797 FLEX Ex Intrinsically Safe I/O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1797 FLEX Ex I/O Communication Modules
. . . . . . . . . . . . . . . . . . . . . . . . . .
1797 FLEX Ex I/O Modules
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1797 FLEX Ex Terminal Bases and Extender Cables
. . . . . . . . . . . . . . . . . .
1797 FLEX Ex Power Supplies
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1798 FlexArmor I/O Modules
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15-2
Distributed I/O
Overview
I/O Adapter
Port
Digital
I/O
Analog
I/O
Intelli-
gent
Page
1790 and 1791D
CompactBlock
I/O Blocks
•Provide 16 I/O maximum per I/O block — 64 I/O maximum per node.
•Provide a compact integrated unit.
•Have a built-in power supply.
•Have a built-in DeviceNet I/O adapter.
•Can be used with a 1747, 1756, or 1785 processor or any open controller.
•DeviceNet
4
4
1791
Standard
I/O Blocks
•Provide 6 thru 128 I/O per I/O block.
•Provide a compact integrated unit.
•Have a built-in power supply.
•Have a built-in remote I/O adapter.
•Can be used with a 1747, 1756, or 1785 processor or 1747 open controller.
•Universal
Remote I/O
4
4
1792
ArmorBlock
MaXum
I/O Blocks
•Provide 4 thru 16 I/O per I/O block.
•An I/O block is a compact integrated unit.
•Has a built-in power supply and DeviceNet I/O adapter.
•Does not require an enclosure because of its sealed housing.
•Can be used with a 1747, 1756, or 1785 processor or any open controller.
•Can be connected directly to flat or round DeviceNet media.
•DeviceNet
4
1734
POINT I/O
Modules
•Provide 2 or 4 I/O per I/O module.
•Provide 16 built-in I/O on some I/O communication interfaces.
•Provide a compact modular assembly.
•Configure the size of the backplane by plugging in bases/modules.
•Can be used with a 1747, 1756, or 1785 processor or any open controller.
•DeviceNet
•PROFIBUS
4
4
1793 / 1794
FLEX I/O
Modules
•Provide 2 thru 16 I/O per module.
•Provide a compact modular assembly.
•Configure the size of the backplane by plugging in terminal bases/modules.
•Connect I/O directly — no separate terminal blocks.
•Can be used with a 1747, 1756, or 1785 processor or any open controller.
•Can be used locally with a 6883 open controller.
•EtherNet/IP
•ControlNet
•DeviceNet
•Universal
Remote I/O
4
4
4
1797
FLEX Ex
I/O Modules
•Provide 4 thru 16 I/O per module.
•Intrinsically safe I/O assembly can be located in hazardous areas.
•Provide a compact modular assembly.
•Configure the size of the backplane by plugging in terminal bases.
•Connect I/O directly thru terminal bases — no separate terminal blocks.
•Can be used with a 1747 or 1785 processor.
•ControlNet
4
4
4
179
FlexArmor
I/O Modules
•Provide 4 or 8 I/O per module.
•Provide a compact modular assembly.
•Does not require an enclosure because of its sealed housing.
•Connect I/O directly with quick-disconnect connectors.
•Can be used with a 1747, 1756, or 1785 processor or any open controller.
•DeviceNet
•PROFIBUS
4
1769 I/O
I/O modules for the 1769 platform are covered in the MicroLogix 1500 / 1769 section.
1746 I/O
I/O modules for the 1746 platform are covered in the SLC / 1746 section.
1771 I/O
I/O modules for the 1771 platform are covered in the PLC / 1771 section.
1756 I/O
I/O modules for the 1756 platform are covered in the Logix5550 / ControlLogix section.
15-3
Distributed I/O
Overview
15-4
Distributed I/O
Overview
The Logix5550, PLC-5, SLC, and MicroLogix programmable
controllers all offer I/O that can be installed locally in the
same chassis as the processor. Thru the use of ControlNet,
DeviceNet, and Universal Remote I/O links for I/O
communication, this I/O in the ControlLogix, 1771, and 1746
platforms can also be distributed over a large area in
locations remote from the processor so that they can be
closer to sensors and actuators. Locating the I/O closer to
the sensors and actuators reduces wiring costs. If the
processor is capable of monitoring/controlling I/O located
remotely from it, at the end of the section on that platform you
are given information about what other kinds of I/O products
are compatible with that processor and what kind of I/O
communication link is needed to bring the processor and the
I/O together into a system.
Having the freedom to monitor and control I/O across an I/O
link means you can select I/O products from a variety of
platforms, not just from the local platform.
In addition to I/O in the ControlLogix, 1771, and 1746
platforms, Rockwell Automation also offers a wide selection
of more granular distributed I/O for use in your control
system. These range from simple 4-I/O blocks to 128-I/O
blocks and include intrinsically safe FLEX Ex I/O modules.
This section covers those additional Allen-Bradley I/O
selections. For I/O specific to a given control platform
system, see the section for that particular system.
ControlNet port for a programmable
controller processor:
S 1747 SLC
S 1756 ControlLogix
S 1785 PLC-5
S SoftLogix 5
S SoftLogix5800
ControlNet Link
DeviceNet Link
Universal Remote I/O Link
S 1793 FLEX Integra I/O Modules
S 1794 FLEX I/O Modules
S 1797 FLEX Ex I/O Modules
DeviceNet port for a programmable
controller processor:
S 1747 SLC
S 1756 ControlLogix
S 1785 PLC-5
S SoftLogix 5
S SoftLogix5800
Universal Remote I/O port for a
programmable controller processor:
S 1747 SLC
S 1756 ControlLogix
S 1785 PLC-5
S SoftLogix 5
S SoftLogix5800
S 1734 POINT I/O Modules
S 1790 CompactBlock I/O Blocks
S 1791D CompactBlock I/O Blocks
S 1792 ArmorBlock I/O Blocks
S 1793 FLEX Integra I/O Modules
S 1794 FLEX I/O Modules
S 1798 FlexArmor I/O Modules
S 1791 Standard I/O Blocks
S 1793 FLEX Integra I/O Modules
S 1794 FLEX I/O Modules
EtherNet/IP port for a programmable
controller processor:
S 1756 ControlLogix
EtherNet/IP Link
S 1794 FLEX I/O Modules
S 1797 FLEX Ex I/O Modules
Class I Div 2 Hazardous
15-5
Distributed I/O
1790 CompactBlock LDX, 1791D CompactBlock I/O Blocks
Advantages
A 1790 CompactBlock LDX or 1791D CompactBlock I/O
block is a compact unit for monitoring and controlling I/O in a
location remote from the processor.
• Compact design of hardware lets it fit into shallow
enclosures and confined areas.
• Locating I/O near sensors and actuators reduces wiring
costs and complexity.
• Distributed I/O at locations remote from the processor can
be connected across DeviceNet links.
• Node address switches and autobaud ease network
commissioning.
• Cyclic and change-of-state DeviceNet capability can
increase thru-put.
• Outputs have electronic fusing for which the outputs are
automatically reset as soon as the output load is reduced
to the specified range.
1790 Advantages
• A maximum of 48 digital I/O per node.
• Lower cost compared to 1791D I/O blocks (because of
lower specifications and functionality)
• Choice of D-shell connector or screw terminals for I/O
connections.
• Universal sink/source inputs.
1791D Advantages
• Selectable input filter times.
• Higher environmental specifications compared to 1790
I/O blocks.
• DeviceLogixt smart component technology provides
limited I/O logic decisions (including timers and counters)
for an intelligent I/O block. Because they don’t have to go
thru the I/O, scan the time for output response to input
change can be shorter, and can occur despite an I/O
communication fault.
Functional Design
A 1790 CompactBlock LDX or 1791D CompactBlock I/O
block contains a maximum of 16 digital I/O circuits. A base
block also contains a built-in power supply and a built-in
DeviceNet I/O adapter.
1790 Mechanical Design
The 1790 CompactBlock LDX I/O blocks can be mounted on
a panel or DIN rail in virtually any orientation. These I/O are
available in both base blocks and expansion blocks. An
expansion block cannot be used by itself; it can only be used
together with a base block. An expansion block does not
have a built-in power supply or built-in DeviceNet I/O
adapter; it must be connected thru a ribbon cable to a base
block. You can connect a maximum of two 1790 digital
expansion blocks to a 1790 base block. The 1790 I/O blocks
are available with either D-shell or screw terminal I/O
connectors.
1791D Mechanical Design
The 1791D CompactBlock I/O blocks can be mounted on a
panel or DIN rail in virtually any orientation. These I/O are
available in both base blocks and expansion blocks. An
expansion block cannot be used by itself; it can only be used
together with a base block. An expansion block does not
have a built-in power supply or built-in DeviceNet I/O
adapter; it must be connected thru a ribbon cable to a base
block. You can connect one 1791D expansion blocks to a
1791D base block. The 1790 I/O blocks are available with
screw terminal I/O connectors.
Communication
A base I/O block has a built-in DeviceNet I/O adapter port
that interfaces the I/O with a DeviceNet link to communicate
with a scanner port for a programmable controller processor.
Specifications
1790 I/O Blocks
1791D I/O Blocks
Weight
•Base blocks: 0.2 kg (0.3 lb)
•Extension blks: 0.1 kg (0.2 lb)
•Base blocks: 0.2 kg (0.4 lb)
•Extension blks: 0.1 kg (0.3 lb)
Environ-
mental
•Operating Temperature:
0 to 55
° C (–4 to 130° F)
•Storage Temperature:
–40 to 85
° C (–40 to 185° F)
•Relative Humidity: 5 to 95%
(without condensation)
•Operating Shock: 10g peak
acceleration, 11 (
±1)ms pulse
width
•Non-Operating Shock: 30g
peak acceleration, 11 (
±1)ms
pulse width
•Vibration: 10-55Hz, 1.5mm
double amplitude
•Operating Temperature:
0 to 60
° C (–4 to 140° F)
•Storage Temperature:
–40 to 85
° C (–40 to 185° F)
•Relative Humidity: 5 to 95%
(without condensation)
•Operating Shock: 30g peak
acceleration, 11 (
±1)ms pulse
width
•Non-Operating Shock: 50g
peak acceleration, 11 (
±1)ms
pulse width
•Vibration: Tested 5g @
10-500Hz per IEC 68-2-6
For more information, see the 1791D CompactBlock I/O for
DeviceNet Product Data, pub. 1791D-2.32.
15-6
Distributed I/O
1790 CompactBlock LDX, 1791D CompactBlock I/O Blocks
DeviceNet Communication
Pneumatic Valve
20191–M
A Logix5550 processor with 1756-DNB module (or PLC processor
with a 1771-SDN DeviceNet Scanner or an SLC processor with a
1747-SDN DeviceNet Scanner)
Series 9000
photoelectric sensors
Proximity
Sensor
1790D-T16BV0
16-Input
Base Block
1790-T0V16X
16-Output
Expansion Blocks
DeviceNet Network
1792 I/O Block
1791D-16B0
16-Input
Base Block
1791D-0B16PX
16-Output
Expansion Block
1790 CompactBlock LDX Digital I/O Block Selection
Inputs
Outputs
Clearance
Operating
Voltage
/Type
Signal Delay
Max
Off-state
Current
Number of
Inputs
Operating
Voltage
/Type
Max
Current Per
Output
Number of
Outputs
Base or
Expansion
Block
1, 2
Catalog
Number
3
Clearance
Dimensions
(rounded up)
HxWxD
16
(2 sets of 8)
—
—
0
base
1790D-16BV0
1790D-T16BV0
10-28.8V dc
2ms
1 0mA
16
(2 sets of 8)
—
—
0
expansion
1790-16BV0X
1790-T16BV0X
10 28.8V dc
sink/source
2ms
1.0mA
8
10-28.8V dc
source
0.5A,
2.0A/block
8
base
1790D-8BV8B
1790D-T8BV8B
8
10-28.8V dc
sink
0.5A,
2.0A/block
8
base
1790D-8BV8V
1790D-T8BV8V
51x104x43 mm
(2.0x4.1x1.7 in)
—
—
—
0
10-28.8V dc
source
0.5A,
2.0A/set
16
(2 sets of 8)
expansion
1790-0B16X
1790-T0B16X
(
)
—
—
—
0
10-28.8V dc
sink
0.5A,
2.0A/set
16
(2 sets of 8)
expansion
1790-0V16X
1790-T0V16X
—
—
—
0
N.O.
contacts
2A,
16.0A/block
8
expansion
1790-0W8SX
1790-T0W8SX
1
The power source for each expander block is its base block. The power source for each base block is the DeviceNet power supply. With 3 expansion blocks attached,
a base block is a maximum 400mA current load to the DeviceNet power supply.
2
A ribbon cable is shipped with each expansion block for connecting it to the base block or the preceding expansion block.
3
Catalog numbers without a “T” designation indicate an I/O block with D-shell connector for I/O circuit connections. Catalog numbers with a “T” designation (1790-T)
indicate an I/O block with screw terminals for I/O connections.
15-7
Distributed I/O
1790 CompactBlock LDX, 1791D CompactBlock I/O Blocks
1791D CompactBlock Digital I/O Block Selection
Inputs
Outputs
Clearance
Operating
Voltage
/Type
Signal Delay
Max
Off-state
Current
Number of
Inputs
Operating
Voltage
/Type
Max Current
Per Output
Number of
Outputs
Base or
Expansion
Block
1 2
Catalog
Number
Clearance
Dimensions
(rounded up)
HxWxD
10 30V d
1.5mA
4
—
—
0
base
1791D-4B0
48x148x38 mm
(1.9x5.9x1.5 in)
10-30V dc
sinking
(source load)
1.5mA
16
(2 sets of 8)
—
—
0
base
1791D-16B0
48x148x38 mm
(1.9x5.9x1.5 in)
(source load)
1.5mA
16
(2 sets of 8)
—
—
0
expansion
1791D-16B0X
48x115x38 mm
(1.9x4.4x1.5 in)
10-30V dc
so rcing
selectable per
input for <1ms,
2ms 4ms
1.5mA
16
(2 sets of 8)
—
—
0
base
1791D-16V0
48x148x38 mm
(1.9x5.9x1.5 in)
sourcing
(sink load)
2ms, 4ms,
8ms, or 16ms
(<1ms is
1.5mA
16
(2 sets of 8)
—
—
0
expansion
1791D-16V0X
48x115x38 mm
(1.9x4.4x1.5 in)
10-30V dc
sinking
(<1ms is
default)
1.5mA
4
10-30V dc
0.5A,
2.0A/block
4
base
1791D-4B4P
48x148x38 mm
(1.9x5.9x1.5 in)
sinking
(source load)
1.5mA
8
10 30V dc
source
0.5A,
4.0A/block
8
base
1791D-8B8P
48x148x38 mm
(1.9x5.9x1.5 in)
10-30V dc
sourcing
(sink load)
1.5mA
8
10-30V dc
sink
0.5A,
4.0A/block
8
base
1791D-8V8P
48x148x38 mm
(1.9x5.9x1.5 in)
—
—
—
0
0.5A,
4.0A/block
8
base
1791D-0B8P
48x148x38 mm
(1.9x5.9x1.5 in)
—
—
—
0
10-30V dc
source
0.5A,
8.0A/block
16
(2 sets of 8)
base
1791D-0B16P
48x148x38 mm
(1.9x5.9x1.5 in)
—
—
—
0
0.5A,
8.0A/block
16
(2 sets of 8)
expansion
1791D-0B16PX
48x115x38 mm
(1.9x4.4x1.5 in)
—
—
—
0
10-30V dc
0.5A,
8.0A/block
16
(2 sets of 8)
base
1791D-0V16P
48x148x38 mm
(1.9x5.9x1.5 in)
—
—
—
0
10 30V dc
sink
0.5A,
8.0A/block
16
(2 sets of 8)
expansion
1791D-0V16PX
48x115x38 mm
(1.9x4.4x1.5 in)
1
The power source for each expansion block is its base block. The power source for each base block is the DeviceNet power supply. With an expansion block
attached, a base block is a maximum 200mA current load to the DeviceNet power supply.
2
A ribbon cable is shipped with each expansion block for connecting it to the base block.
Communication Cable Assembly Selection
Description
Length (m)
Connector Shell Type
Catalog Number
An unshielded DeviceNet drop cable assembly with a micro-male connector for
ti
t
fl t t
k
bl
1
aluminum
1485K-P1F5-C
y
connection to a flat trunk cable
6
aluminum
1485K-P6F5-C
A shielded DeviceNet drop cable assembly with a mini-male connector for
ti
t
d t
k
bl
1
aluminum
1485R-P1M5-C
y
connection to a round trunk cable
stainless steel
1485RS-P1M5-C
2
aluminum
1485R-P2M5-C
stainless steel
1485RS-P2M5-C
3
aluminum
1485R-P3M5-C
stainless steel
1485RS-P3M5-C
Note: You can also use a cable section with no connectors.
Accessory Selection
Description
Catalog Number
A connector for daisy-chaining a DeviceNet drop cable
1487-PLUG10R
Class I Div 2 Hazardous
15-8
Distributed I/O
1791 Standard I/O Blocks
Advantages
A 1791 standard I/O block is a compact unit for monitoring
and controlling I/O in a location remote from the processor.
• Compact design of hardware lets it fit into limited panel
space.
• Distributed I/O at locations remote from the processor can
be connected across Universal Remote I/O links.
• Locating I/O near sensors and actuators reduces wiring
costs and complexity.
• Replace 1791 standard I/O blocks without rewiring
connections
Functional Design
A 1791 standard I/O block contains digital or analog I/O
circuits, a built-in power supply, and a built-in Universal
Remote I/O adapter. I/O blocks are available in sizes of 16,
32, 64, and 128 I/O. Analog I/O blocks supply loop power for
analog-input current loops. Analog I/O blocks can be scaled
to engineering units. Analog I/O blocks are compatible with
Logix5550, PLC-5, and SLC processors.
Mechanical Design
The 1791 I/O blocks are designed for back-panel mounting.
Blocks of 16 and 32 I/O (except for relay contact outputs) can
be mounted vertically or horizontally on a panel or DIN rail.
Removable terminal strips on the standard I/O blocks make it
easy to replace an I/O block without rewiring.
Communication
A 1791 standard I/O block has a built-in Universal Remote
I/O adapter port that interfaces the I/O with a Universal
Remote I/O link to communicate with a scanner port for a
programmable controller processor.
Specifications
Weight
Standard I/O Blocks
•analog I/O blocks: 0.4 kg (0.9 lb)
•16-digital I/O blocks: 0.4 kg (0.9 lb)
•32-digital I/O blocks: 0.8 kg (1.7 lb)
•64-digital I/O blocks: 1.0 kg (2.2 lb)
•128-digital I/O blocks: 1.8 kg (3.9 lb)
For more information, see the 1791 Block I/O Product Data,
pub. 1791-2.1.
Universal Remote I/O Communication
Universal Remote I/O Link
1771 I/O
(1771-ASB)
1336 PLUS Drive
A Logix5550 processor with 1756-DHRIO module (or a
PLC processor with a remote I/O scanner port or an
SLC processor with a 1747-SN Remote I/O Scanner)
20063
1791-IOBX
128 I/O Block
1791-16AC/B
32-I/O Block
1791-8BC/B
16-I/O Block
1791-8BR/B
16-I/O Block
15-9
Distributed I/O
1791 Standard I/O Blocks
1791 Standard Digital I/O Block Selection
Inputs
Outputs
Operating
Voltage
/Type
Signal
Delay
Max
Off-
state
Current
Number
of
Inputs
Operating
Voltage
/Type
Max Current Per
Output
2
(All outputs on
unless otherwise
noted)
Number
of
Outputs
Catalog Number
I/O Block
Power
Source
Clearance
Dimensions
(rounded up)
HxWxD
10-30 dc
i ki
1.0ms on
5 0
ff
1.5 mA
16
—
—
0
1791-16B0
19.2-30V dc
300 A @
178x69x99 mm
(7 2 7 3 9 i )
sinking
(source
5.0ms off
or
0
10-30 dc
500 mA @ 60
° C
16
1791-0B16
300 mA @
24V dc
(7x2.7x3.9 in)
(source
load)
or
1.0ms on
18
ff
8
source
1A @ 30
° C
8
1791-8BC
24V dc
)
18ms off
8
N.O. contact
1
1A @ 30
° C
8
1791-8BR
(switch
select ble
32
10-30 dc
0
1791-32B0
178x112x99 mm
(7 4 4 3 9 i )
selectable
block-wide)
0
source
32
1791-0B32
(7x4.4x3.9 in)
block-wide)
16
16
1791-16BC
24
8
1791-24B8
24
N.O. contact
1
8
1791-24BR
79-132 ac,
47 63 H
1.0ms on
26
ff
2.3 mA
@ 60 H
16
—
—
0
1791-16A0
85-132V ac
47 63 H
178x69x99 mm
(7 2 7 3 9 i )
47-63 Hz
26ms off
@ 60 Hz
0
20-132 ac
300 mA @ 60
° C
16
1791-0A16
47-63 Hz
150 mA @
(7x2.7x3.9 in)
8
600 mA @ 30
° C
8
1791-8AC
150 mA @
120V ac
8
N.O. contact
1
600 mA @ 30
° C
8
1791-8AR
32
0
1791-32A0
178x112x99 mm
(7 4 4 3 9 i )
0
20-132 ac
32
1791-0A32
(7x4.4x3.9 in)
16
20-132 ac
16
1791-16AC
24
8
1791-24A8
24
N.O. contact
1
8
1791-24AR
18-26.4 dc
sink (source
lo d)
10ms on
10ms off
1.0 mA
32
18-26.4 dc
source
300 mA @ 60
° C
32
1791-IOBW
18-26.4V dc
300 mA @
24V dc
178x157x44 mm
(7x6.2x1.8 in)
load)
64
(2.4A per set of
16 outputs)
64
1791-IOBX
24V dc
330x157x44 mm
(13x6.2x1.8 in)
18-26.4 dc
source (sink
lo d)
32
18-26.4 dc
sink
16 out uts)
32
1791-IOVW
178x157x44 mm
(7x6.2x1.8 in)
load)
64
64
1791-IOVX
330x157x44 mm
(13x6.2x1.8 in)
1
Output current at
rated power over
entire temperature
range
Resistive:
P.F. = 1,
cos
q = 1.0
1A @ 20-132V ac
1A @ 20-30V dc
0.2A @ 125V dc
Inductive:
P.F. = 0.4,
cos
q = 0.4
0.5A @ 20-132V ac
1A @ 20-30V dc,
L/R = 7ms
0.1A @ 125V dc,
L/R = 7ms
2
vertical mounting
1791 Standard Analog I/O Block Selection
Inputs
Outputs
Clearance
Number
of Inputs
Ranges
Channel
Update
Resolution
Number
of
Outputs
Ranges
Channel
Update
Resolution
Catalog
Number
I/O Block
Power
Source
Clearance
Dimension
(rounded up)
HxWxD
4 diff
"10V; "5V
0-10V; 0-5V
108ms
4 channels
14 bits
2 diff
"10V
10ms/
2 channels
14 bits
1791-N4V2
85-132V ac
47-63 Hz
177x69x98 mm
(7x2.8x3.9 in)
4 diff
0 10V 0 5V
0-20 mA
(block supplies
l
)
4 channels
14 bits
2 diff
0-20 mA
2 channels
13 bits
1791-N4C2
47 63 Hz
150 mA @
120V ac
(7x2.8x3.9 in)
4 diff
(
loop power)
14 bits
2 diff
"10V
14 bits
1791-NDV
19.2-30V dc
600 mA @
4 diff
14 bits
2 diff
0-20 mA
13 bits
1791-NDC
600 mA @
24V dc
For each I/O, the data format is natural binary.
15-10
Distributed I/O
1792 ArmorBlock I/O Blocks
Advantages
A 1792 ArmorBlock
I/O block is a compact unit for
monitoring and controlling I/O in a location remote from the
processor.
• Distributed I/O at locations remote from the processor can
be connected across DeviceNet I/O links.
• Locating I/O near sensors and actuators reduces wiring
costs and complexity.
• Eliminates enclosure cost because of sealed housing.
• Low installation cost and easy to replace without rewiring,
because industry-standard mini-connectors are used for
connection to the DeviceNet network and output-circuit
power supply; and micro-connectors are used for
connection to each sensor or actuator.
• Isolated auxiliary power maintains output power to the
block if main power fails so that you can have the option
of holding outputs in their last state.
• Outputs electronically protected from failing shorted with
option to auto-restart or latch off.
• Complies with Open DeviceNet Vendor Association, Inc.
(O.D.V.A.) conformance test software.
Functional Design
A 1792 I/O block contains digital I/O circuits, a built-in power
supply, and a built-in DeviceNet I/O adapter. I/O blocks are
available in sizes of 2, 4, 8, and 16 I/O. DeviceNet I/O
update period can be shortened by transferring I/O values
only when a change-of-state has occurred. Electronic fusing
provides protection for output load devices and easy
resetting.
Mechanical Design
The 1792 I/O blocks are designed for back-panel or machine
mounting. Blocks can be mounted vertically or horizontally.
Enclosure costs are eliminated because each block is
packaged in a sealed housing rated for IP67 and NEMA 4X
and 6P. The 1792 I/O blocks are available in three
mechanically different types of packaging: the original
standard ArmorBlock, the ArmorBlock-LP (low profile), and
the ArmorBlock MaXum.
The standard ArmorBlock I/O blocks are available with either
aluminum or stainless steel connector shells. Blocks with
stainless steel connector shells can be used in chemical and
food-processing environments.
Blocks with an LP (low-profile) suffix in their catalog number
are available in an even more compact size than the
standard blocks.
Blocks with catalog numbers starting with 1792D to
designate ArmorBlock MaXum also have a compact style
with a low profile; but each requires a separate base for
providing connection to a DeviceNet trunk or drop cable.
With the separate base, you have more choices of how to
connect to the network and the power source.
I/O Block
30780-M
Base
Communication
A 1792 I/O block has a built-in DeviceNet I/O adapter port
that interfaces the I/O with a DeviceNet link to communicate
with a scanner port for a programmable controller processor.
DeviceNet I/O update period can be shortened by
transferring I/O values only when a change-of-state has
occurred.
Specifications
Housing Rating
•IP67
•NEMA 4X and 6P
Shock
Operating:
Non-operating:
30g peak acceleration, 11 (
±1) ms pulse width
50g peak acceleration, 11 (
±1) ms pulse width
Vibration
5g @ 10-500Hz
(displacement .030 in peak-to-peak)
Weight
0.5 kg (1.1 lb) for a standard block
0.6 kg (1.3 lb) for a low-profile (LP) block
0.5 kg (1.1 lb) for a 4-I/O-connector MaXum (D)
block with base
0.6 kg (1.3 lb) for an 8-I/O-connector MaXum (D)
block with base
For more information, see the 1792 ArmorBlock I/O Product
Data, pub. 1792-2.1.
15-11
Distributed I/O
1792 ArmorBlock I/O Blocks
Typical ArmorBlock MaXum Configuration for Standard DeviceNet Round Trunk Cable
Sensor
Actuator
Actuator
Actuator
Actuator
Actuator
Programmable controller
processor with a Device
Net scanner port
Auxiliary
Power
Supply
Sensor
41619
1792D-4BVT4D block
with 1792D-CB18P base
1792D-2BVA2D block
with 1792D-CB12 base
1792D-16BVT0D block
with 1792D-CB18 base
Standard DeviceNet Round Trunk Cable
Typical ArmorBlock MaXum Configuration for Flat DeviceNet Trunk Cable
30363a–M
Auxiliary
Power
Supply
Enclosure
Network
Power
Supply
(1787-DNPS)
Terminator
Terminator
Programmable controller
processor with a DeviceNet
scanner port
RediSTATION
Operator Interface
Series 9000
Photoelectric
Sensor
Flat Trunk Cable
for a Kwiklink
t
Connection System
1792D-4BV0D Block
with 1792D-CB12 Base
for round cable
1792D-4BVT4D Block
with 1792D-CBFM Base
for flat cable
15-12
Distributed I/O
1792 ArmorBlock I/O Blocks
1792 ArmorBlock Digital I/O Block Selection
Inputs
Outputs
I/O Block Power
Cle r nce
Operating
Voltage
/Type
Signal Delay
Max
Off-state
Current
No. of
Inputs
Operating
Voltage
/Type
Max
Current Per
Output
Number
of
Outputs
Catalog Number
Type
I/O Block Power
Source Current
Load @ 25V,
50mA/sensor
5
Clearance
Dimensions
(rounded up)
HxWxD
select ble per
4
0
1792-IB4A
1
1792-IB4S
2
325mA
11-25V dc
sinking
selectable per
input for
<1ms, 2ms,
1 5mA
8
—
—
0
1792-IB8A
1
1792-IB8S
2
d
525mA
sinking
(source
load)
<1ms, 2ms,
4ms, 8ms, or
16ms (<1ms
is defa lt)
1.5mA
16
0
1792-IB16A
1
1792-IB16S
2
S
tandard
925mA
78x197x67 mm
(3.0x7.8x2.6 in)
is default)
2
19-30V dc
2A @ 60
_ C
1A @ 70
_ C
2
1792-IB2XOB2EA
1
1792-IB2XOB2ES
2
S
t
125mA
(
)
—
—
—
0
19 30V dc
source
2A @ 60
_ C
2A @ 70
_ C
4
1792-OB4EA
1
1792-OB4ES
2
125mA
11-25V dc
sinking
<1ms
0 8mA
16
—
—
0
1792-IB16LP
3
file
925mA
sinking
(source
load)
<1ms
0.8mA
8
19-30V dc
so rce
1A @ 60
_ C
8
1792-IB8XOB8PLP
3
L
ow-Profi
l
125mA
60x172x51 mm
(2.4x6.8x2.0 in)
—
—
—
0
source
2A @ 60
_ C
8
1792-OB8PLP
3
L
o
125mA
16
—
—
0
1792D-16BVT0D
4
1A
69x174x48 mm
(2.7x6.9x1.9 in)
8
—
—
0
1792D-8BVT0D
4
360mA
69x120x48 mm
(2.7x4.7x1.9 in)
select ble per
4
—
—
0
1792D-4BVT0D
4
360mA
69x120x48 mm
(2.7x4.7x1.9 in)
11-25V dc
selectable per
input for
<1ms, 2ms,
1 5mA
2
—
—
0
1792D-2BVT0D
4
m
180mA
69x120x48 mm
(2.7x4.7x1.9 in)
11 25V dc
sink/source
<1ms, 2ms,
4ms, 8ms, or
16ms (<1ms
is defa lt)
1.5mA
12
0.5A
(4A/block)
4
1792D-12BVT4D
4
MaXu
m
1A
69x174x48 mm
(2.7x6.9x1.9 in)
is default)
8
0.5A
(4A/block)
8
1792D-8BVT8D
4
540mA
69x174x48 mm
(2.7x6.9x1.9 in)
4
1A
(4A/block)
4
1792D-4BVT4D
4
360mA
69x120x48 mm
(2.7x4.7x1.9 in)
2
10-30V dc
source
1A
(4A/block)
2
1792D-2BVA2D
4
180mA
69x120x48 mm
(2.7x4.7x1.9 in)
—
—
—
0
2A
(4A/block)
4
1792D-0B4D
4
180mA
69x120x48 mm
(2.7x4.7x1.9 in)
—
—
—
0
0.5A
(4A/block)
8
1792D-0B8D
4
540mA
69x174x48 mm
(2.7x6.9x1.9 in)
—
—
—
0
0.3A
(4A/block)
16
1792D-0VT16E
4
1A
69x174x48mm
(2.7x6.9x1.9 in)
1
The “A”suffix designates an aluminium connector shell. An “AT” suffix designates an aluminium connector shell and includes a T tap.
2
The “S”suffix designates a stainless steel connector shell. An “ST” suffix designates a stainless steel connector shell and includes a T tap.
3
Automatically includes a T tap.
4
To use this I/O block, you must also select a base (see below).
5
The input circuit power source (11–25V dc) is the same as the I/O block power source, which comes thru the DeviceNet connection.
15-13
Distributed I/O
1792 ArmorBlock I/O Blocks
1792D-Series ArmorBlock MaXum Base Selection
Catalog
number
Connects to:
Weight
kg (lb)
1792D-CB12
a round DeviceNet 12-mm drop cable from either a standard (round) or flat trunk cable.
1792D-CB12JP
a round DeviceNet 12-mm drop cable for either a standard (round) or flat trunk that does not require an extra connection to power outputs
1792D-CBFM
a flat (KwikLink
t) DeviceNet trunk cable.
1792D-CB18
a standard (round) DeviceNet 18-mm trunk cable.
0 2 (0 5)
1792D-CB18JP
a round DeviceNet 18-mm trunk cable. Does not require a separate connection to power outputs.
0.2 (0.5)
1792D-CB18P
a standard (round) DeviceNet 18-mm trunk cable with a 4-pin power connector at the same end of the base.
1792D-CB18PT
a standard (round) DeviceNet 18-mm trunk cable with a 4-pin power passthru connector at the opposite end of the base. Because of the
connectors at both ends of the base, this base is only compatible with the MaXum blocks with a maximum of 4 I/O connectors
(1792D-4BVT4D, -2BVT2D, -4BVT0D, and -2BVT0D).
15-14
Distributed I/O
1734 POINT I/O Modules
Advantages
POINT I/O products provide a compact assembly containing
extremely modular I/O for a flexible physical configuration.
• Modularity of I/O and the backplane.
• Compact design of hardware lets it fit into limited panel
space.
• Distributed I/O at locations remote from the processor can
be connected across DeviceNet or PROFIBUS I/O links.
• Locating I/O near sensors and actuators reduces wiring
costs and complexity, and improves signal-to-noise ratio.
• Removal and insertion under backplane power of any
1734 I/O module without disruption of any other modules
in the system makes it possible to replace a failed module
while keeping the rest of the system running.
• Replace 1734 I/O modules without rewiring connections
because you can unplug the I/O module and its
removable terminal block (RTB) separately from the
separate base.
• The module assembly is suitable for either horizontal or
vertical mounting.
Functional Design
POINT I/O modules offer 2 or 4 I/O each. You can plug
together a maximum of 64 I/O modules into a POINT I/O
assembly, for a maximum of 256 I/O per assembly. The I/O
modules are interfaced to a network thru a communication
interface (CI) or I/O adapter module that also contains a
built-in power supply that converts incoming 24V dc power to
the 5V dc backplane power. The I/O modules receive power
from the power-supply thru the backplane.
Mechanical Design
POINT I/O products are packaged in a modular I/O
assembly. For each I/O module, you mount a base onto a
DIN rail. You plug the I/O module into the base. You also
plug a removable terminal block (RTB) onto the base below
the I/O module. Mechanical keying of each module to its
base guards against applying improper voltage to the
module.
I/O Module
30880-M
Removable Terminal
Block (RTB)
Base (providing
backplane) mounts
onto DIN rail
An I/O adapter/CI is always a modular component of the
assembly, on the left end of the assembly. You snap the I/O
adapter/CI onto a DIN rail and slide each succeeding base
into position along the side of the adapter/CI or preceding
base. Each adapter/CI is limited to providing backplane
power for a maximum of 12 I/O modules in tandem. With an
I/O adapter, you can place a 1734-EP24DC expansion power
unit to the right of the 12th I/O module to provide backplane
power for an additional 12 I/O modules. You can continue
adding 12 more I/O modules in this way until you reach the
limit of 64. The 1734-EP24DC is not compatible with a CI;
therefore, a CI is limited to 12 I/O modules total.
Also running thru the I/O adapter, CI, or 1734-EP24DC and
the bases is a bus for I/O circuit power. You connect the
power to the I/O adapter, CI, or 1734-EP24DC and it is
distributed to the I/O modules thru this bus. For the I/O
adapter or 1734-EP24DC, you must connect 24V dc; and
any I/O modules connected to the right of it must have 24V
dc I/O circuits. For the 1734-PDN CI you must connect the
appropriate power for the I/O circuits of the I/O module
connected to its right. For the other CI modules, you must
connect the power specified for the built-in I/O circuits of the
CI. If the I/O circuits of some I/O modules need a power
source different from that connected thru any I/O adapter,
you must install a 1734-FPD I/O power distribution/isolation
module to discontinue the I/O circuit power bus so you can
apply the second I/O circuit power source thru the 1734-FPD
to the I/O modules to its right.
Communication
A POINT I/O adapter/CI module provides an interface for
communication between the I/O modules and a scanner port
for a programmable controller across an I/O link. Each
POINT I/O adapter/CI module communicates with the I/O
modules across the modular backplane made up of bases.
The 1734-PDN CI is not a DeviceNet node; but each I/O
module connected on a CI backplane and each CI module
with built-in I/O is a DeviceNet node. The 1734-ADN I/O
adapter is a DeviceNet node; its I/O modules are part of a
sub net, not additional nodes. The 1734-APB is a
PROFIBUS I/O adapter.
15-15
Distributed I/O
1734 POINT I/O Modules
5V backplane power bus
I/O circuit power bus
Power
Supply
1734-FPD
Power
Distribution/
Isolation
5V backplane power bus
I/O circuit power bus
12 total I/O modules maximum
I/O
I/O
I/O
I/O
I/O circuit power source
I/O Adapter
5V backplane power bus
24V I/O circuit power bus
12 I/O modules maximum
1734-EP24DC
Expansion
Power Supply
5V backplane power bus
24V I/O circuit power bus
12 I/O modules maximum
I/O
I/O
I/O
I/O
24V dc
24V dc
DeviceNet
24V dc
I/O circuit power source
Point I/O Configuration with Communication Interface Module
Point I/O Configuration with an I/O Adapter Module
Power
Supply
Power
Supply
Communication
Interface
64 total I/O modules maximum
Ordering Information
Product
Function
Catalog Number
DeviceNet Communication
Interface (CI) Module
Interfaces I/O modules to the DeviceNet link and converts 24V dc DeviceNet power to 5V dc backplane
power. This CI is not addressed as a DeviceNet node. Each of its I/O modules is addressed as a
separate DeviceNet node. Included with this module is a 1734-RTB screw-clamp RTB. To this RTB you
connect the I/O power source specified for the I/O module connected to the right. This I/O power is
distributed from this module thru the bases along the I/O power bus to the I/O modules to the right until a
1734-FPD distribution/isolation module breaks the continuity of the I/O power bus.
1734-PDN
15-16
Distributed I/O
1734 POINT I/O Modules
Ordering Information (continued)
Product
Function
Catalog Number
1734D Series DeviceNet
Communication Interface (CI)
Module
Provides 8 built-in input circuits and 8 built-in output circuits, interfaces these built-in I/O and I/O modules
to the DeviceNet link, and converts 24V dc DeviceNet power (350mA max) to 5V dc backplane power
(1.0A max). This module is addressed as a DeviceNet node for its built-in I/O. Plus, each of its I/O
modules is addressed as a separate DeviceNet node. Included with this module are five 1734-RTB
screw-clamp RTBs. To one RTB you connect the I/O power source specified for the built-in I/O. This I/O
power is distributed from this module thru the bases along the I/O power bus to the I/O modules to the
right until a 1734-FPD distribution/isolation module breaks the continuity of the I/O power bus.
I/O Power Distribution /
Isolation Module
When placed between I/O modules, it breaks the continuity of the I/O circuit power bus so that the I/O
circuits of the modules to the right are isolated from the I/O circuits of the modules to the left. If all the I/O
modules you connect in an assembly with an adapter require the same I/O power, you don’t need an I/O
power distribution/isolation module. However, to use I/O modules of two different I/O power
requirements, you must place the I/O power isolation module in the middle with the I/O modules with the
one I/O power requirement on the one side of it and I/O modules with the other I/O power requirement on
the other. Included with this module is a 1734-RTB screw-clamp RTB. To this RTB you connect the I/O
power source specified for the I/O module connected to the right. This module provides continuity for the
backplane signals and the 5V dc backplane power bus.
1734-FPD
DeviceNet I/O Adapter Module
Interfaces I/O modules to the DeviceNet link and converts 24V dc I/O circuit power to 5V dc backplane
power. This I/O adapter is addressed as a DeviceNet node. But its I/O modules are not addressed as
separate DeviceNet nodes. Included with this module is a 1734-RTB screw-clamp RTB. To this RTB you
connect the 24V-dc I/O power source which is also converted to 5V dc backplane power. The backplane
power from this module is distributed thru the bases along the backplane power bus to the I/O modules
(12 maximum) to the right until a 1734-EP24DC expansion power supply module breaks the continuity of
the backplane power bus. The 24V dc I/O power is distributed from this module thru the bases along the
I/O power bus to the I/O modules (12 maximum) to the right until a 1734-EP24DC expansion power
supply module or 1734-FPD distribution/isolation module breaks the continuity of the I/O power bus.
1734-ADN
PROFIBUS I/O Adapter
Module
Interfaces I/O modules to the PROFIBUS link and converts 24V dc I/O circuit power to 5V dc backplane
power. This I/O adapter is addressed as a PROFIBUS node. But its I/O modules are not addressed as
separate nodes. Included with this module is a 1734-RTB screw-clamp RTB. To this RTB you connect
the 24V-dc I/O power source which is also converted to 5V dc backplane power. The backplane power
from this module is distributed thru the bases along the backplane power bus to the I/O modules (12
maximum) to the right until a 1734-EP24DC expansion power supply module breaks the continuity of the
backplane power bus. The 24V dc I/O power is distributed from this module thru the bases along the I/O
power bus to the I/O modules (12 maximum) to the right until a 1734-EP24DC expansion power supply
module or 1734-FPD distribution/isolation module breaks the continuity of the I/O power bus.
1734-APB
Expansion Power Supply
Module
When placed between I/O modules to the right of a 1734-ADN adapter, it breaks the continuity of the I/O
circuit power bus so that the I/O circuits of the modules to the right are isolated from the I/O circuits of the
modules to the left. It also breaks the continuity of the backplane power bus and converts 24V dc I/O
circuit power (0.4A max) to 5V dc backplane power (1.0A max) for the I/O modules to its right. Included
with this module is a 1734-RTB screw-clamp RTB. To this RTB you connect the I/O power source for the
I/O module connected to the right. This module provides continuity for the backplane signals. With each
1734-EP24DC you install to the right of a 1734-ADN, you can install 12 additional I/O modules.
1734-EP24DC
Base Assembly
A base plus a 1734-RTB 8-terminal screw-clamp RTB. Each base provides a receptacle for an I/O
module to plug into. The bases plugged together with the I/O adapter form the backplane which includes
the 5V dc backplane power bus. They also form the I/O circuit power bus.
1734-TB
A base plus a 1734-RTBS 8-terminal spring-clamp RTB. Each base provides a receptacle for an I/O
module to plug into. The bases plugged together with the I/O adapter form the backplane which includes
the 5V dc backplane power bus. They also form the I/O circuit power bus.
1734-TBS
A base plus a 1734-RTB 12-terminal screw-clamp RTB. Each base provides a receptacle for an I/O
module to plug into. The bases plugged together with the I/O adapter form the backplane which includes
the 5V dc backplane power bus. They also form the I/O circuit power bus.
1734-TB3
A base plus a 1734-RTBS 12-terminal spring-clamp RTB. Each base provides a receptacle for an I/O
module to plug into. The bases plugged together with the I/O adapter form the backplane which includes
the 5V dc backplane power bus. They also form the I/O circuit power bus.
1734-TB3S
RTB (quantity, 5)
An 8-terminal screw-clamp removable terminal block (RTB). This RTB can be used with an I/O adapter
module, an I/O power distribution module, or a base for 2-wire sensors/actuators.
1734-RTB
An 8-terminal spring-clamp removable terminal block (RTB). This RTB can be used with an I/O adapter
module, an I/O power distribution module, or a base for 2-wire sensors/actuators.
1734-RTBS
A 12-terminal screw-clamp removable terminal block (RTB). This RTB can be used with a base for
3-wire sensors/actuators.
1734-RTB3
A 12-terminal spring-clamp removable terminal block (RTB). This RTB can be used with a base for
3-wire sensors/actuators.
1734-RTB3S
I/O Modules
Converts input circuit signals to the backplane level and converts backplane signals to output circuit level.
15-17
Distributed I/O
1734 POINT I/O Modules
1
1734-PDN DeviceNet
Communication Interface
Module
1734D Series DeviceNet
Communication Interface
Module
1734-FPD Power
Distribution / Isolation
Module
1734-ADN DeviceNet
I/O Adapter Module
1734-EP24DC
Expansion Power
Supply Module
DeviceNet I/O Adapter and Communication Interface Module Specifications
1734D-
Catalog No.
1734-APB
1734-ADN
1734-PDN
IB8XOB8E
IB8XOB8ES
IB8XOW8
IB8XOW8S
IA8XOA8
IA8XOA8S
IA8XOW8
IA8XOW8S
DeviceNet 24V Current Load
Not Applicable
30mA
0.4A max
95mA min,
350mA max
95mA min,
350mA max
95mA min,
350mA max
95mA min,
350mA max
Power Supply Separate 24V
Current Load
0.4A max
0.4A max
None
None
None
None
None
Max Power Consumption
8.1W
8.1W
7.0W
8.4W
8.4W
8.4W
8.4W
Max Backplane Output
Current
1.0A
1.0A
1.0A
1.0A
1.0A
1.0A
1.0A
Weight
0.3 kg (0.6 lb)
0.3 kg (0.6 lb)
0.1 kg (0.3 lb)
0.3 kg (0.8 lb)
0.4 kg (0.9 lb)
0.4 kg (0.9 lb)
0.4 kg (0.9 lb)
Dimensions (H x W x D)
in mm (in)
133 x 55 x 76
(5.25 x 2.16 x 3.0)
133 x 55 x 76
(5.25 x 2.16 x 3.0)
133 x 25 x 76
(5.25 x 1.0 x 3.0)
133 x 61 x 76
(5.24 x 2.4 x 3.0)
Operating Temperature
–10 to 55
° C
(–14 to 131
° F)
–20 to 55
° C (–4 to 131° F)
Storage Temperature
–40 to 85
° C (–40 to 185° F)
Relative Humidity
5 to 95% (without condensation)
Shock, Operating:
Non-Operating:
•30g peak acceleration, 11 (±1)ms pulse width
•50g peak acceleration, 11 (±1)ms pulse width
Vibration
Tested 5g @ 10-500Hz per IEC 68-2-6
1734D Series DeviceNet I/O Communication Interface Module Selection
Inputs
Outputs
Operating
Voltage
/Type
Signal Delay
Max
Off-state
Current
Number of
Inputs
Operating
Voltage
/Type
Max Current Per
Output
Number of
Outputs
Screw or
Spring Clamp
RTBs
Catalog Number
10-28.8V dc
sinking
1 5mA
8
10-28.8V dc
0.75A
8
screw
1734D-IB8XOB8E
sinking
(source load)
selectable per input
for 0 – 65ms in 1ms
1.5mA
8
10 28.8V dc
source
0.75
electronically fused
8
spring
1734D-IB8XOB8ES
10-28.8V dc
sinking
for 0 – 65ms in 1ms
increments (1ms is
defa lt)
1 5mA
8
N.O.
2A @ 5-30V dc
8
screw
1734D-IB8XOW8
sinking
(source load)
default)
1.5mA
8
N.O.
contact
2 @ 5 30V dc
resistive
8
spring
1734D-IB8XOW8S
85-132V ac
selectable per input
1 5mA
8
85-132V ac
0 5A @ 60
_ C
8
screw
1734D-IA8XOA8
85 132V ac
47-63Hz
selectable er in ut
On: 8.6, 9, 10, 16, 24,
40 or 72ms
1.5mA
8
85 132V ac
47-63Hz
0.5A @ 60
_ C
8
spring
1734D-IA8XOA8S
85-132V ac
40, or 72ms
Off:26.6, 27, 28, 30,
1 5mA
8
N.O.
2A @ 125V ac
8
screw
1734D-IA8XOW8
85 132V ac
47-63Hz
Off:26.6, 27, 28, 30,
42, 58, or 90ms
1.5mA
8
N.O.
contact
2 @ 125V ac
resistive
8
spring
1734D-IA8XOW8S
15-18
Distributed I/O
1734 POINT I/O Modules
1734 Expansion Power Supply,
Power Distribution / Isolation, and I/O Module Specifications
1734-EP24DC
Expansion Power
Supply Module
1734-FPD Power
Distribution /
Isolation Module
1734 I/O Modules
Built-in Power Supply
Input Current Load
Max Power Consumption
Backplane Output Current
•0.4A max @ 24V dc
•7.0W max
•1.3A max
Not Applicable
Not Applicable
Weight in kg (pounds)
0.1 (0.3 )
0.1 (0.3 )
1734-IB2: 0.03 (0.1)
1734-IB4: 0.03 (0.1)
1734-IE2C: 0.03 (0.1)
1734-IV2: 0.03 (0.1)
1734-IV4: 0.03 (0.1)
1734-OB2E: 0.03 (0.1)
1734-OB4E: 0.03 (0.1)
1734-OE2C: 0.04 (0.1)
1734-OW2: 0.04 (0.1)
Dimensions (H x W x D)
in mm (in)
133 x 25 x 76
(5.25 x 1.0 x 3.0)
133 x 25 x 76
(5.25 x 1.0 x 3.0)
133 x 12 x 76
(5.25 x 0.5 x 3.0)
Operating Temperature
–20 to 55
° C (–4 to 131° F)
Storage Temperature
–40 to 85
° C (–40 to 185° F)
Relative Humidity
5 to 95% (without condensation)
Shock, Operating:
Non-Operating:
•30g peak acceleration, 11 (±1)ms pulse width
•50g peak acceleration, 11 (±1)ms pulse width
Vibration
Tested 5g @ 10-500Hz per IEC 68-2-6
1734 Digital ac Input Module Selection
Type
Voltage
Category
Operating
Voltage
Signal Delay
Max
Off-State
Current
Number
of
Inputs
Module
Cat. No.
1734-
Base Assy.
Cat. No.
1734-
Backplane
Current
Load
Applications
ac
120
85-132V ac
software
configurable per
2.5mA
2
IA2
TB3/TB3S
75mA
3-wire proximity sensors
configurable er
input for
21 – 84ms in
TB/TBS
75mA
General-purpose ac inputs
incl ding 2 wire proximity
220
159-264V
c
21 – 84ms in
1ms increments
(21ms is def lt)
2.9mA
2
IM2
TB/TBS
75mA
including 2-wire proximity
sensors
ac
(21ms is default)
TB3/TB3S
75mA
3-wire proximity sensors
1734 Digital dc Input Module Selection
Type
Voltage
Category
Operating
Voltage
Signal Delay
Max
Off-State
Current
Number
of
Inputs
Module
Cat. No.
1734-
Base Assy.
Cat. No.
1734-
Backplane
Current
Load
Applications
dc
24 sink
(
l d)
10-28.8V
d
software
fi
bl
1.5mA
4
IB4
TB3/TB3S
75mA
3-wire proximity sensors
(source load)
dc
configurable per
inp t for
TB/TBS
75mA
General-purpose 24V dc inputs
i l di
2 i
i it
input for
0 – 65ms in 1ms
2
IB2
TB/TBS
including 2-wire proximity
sensors
24 source
( i k l d)
0 65ms in 1ms
increments (1ms
is def lt)
2
IV2
TB/TBS
sensors
(sink load)
is default)
4
IV4
TB/TBS
TB3/TB3S
75mA
3-wire proximity sensors
1734 Digital ac Output Module Selection
Type
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Continu-
ous Current
Per Module
Number
of
Outputs
Module
Cat. No.
1734-
Base Assy.
Cat. No.
1734-
Backplane
Current
Load
Applications
ac
120/220
85-264V ac
0.75A
1.5A
2
OA2
TB/TBS
75mA
General-purpose ac outputs
15-19
Distributed I/O
1734 POINT I/O Modules
1734 Digital dc Output Module Selection
Type
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Continu-
ous Current
Per Module
Number
of
Outputs
Module
Cat. No.
1734-
Base Assy.
Cat. No.
1734-
Backplane
Current
Load
Applications
dc
24
10-28.8V
d
1A
(1 0
i )
2A
2
OB2E
TB/TBS
75mA
24V dc outputs with electronic
f i
source
dc
(1.0mA min)
3A
4
OB4E
TB/TBS
fusing
1734 Digital Contact Output Module Selection
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Contin-
uous Current
Per Module
Number
of
Outputs
Type of
Contact
Outputs
Module
Cat. No.
1734-
Base Assy.
Cat. No.
1734-
Backplane
Current
Load
Applications
5-125V dc
125V ac
240V ac
5 thru 240
2A @ 5-30V dc
resistive
2A @ 5-30V dc
resistive
2
N.O. relay
contact
outputs
OW2
TB/TBS
80mA
Individually isolated contact
outputs
1734 Analog I/O Module Selection
Number of
Inputs/
Outputs
Voltage
Range
Current Range
Data
Format
Module
Cat. No.
1734-
Base
Assembly
Cat. No.
1734-
Back-
plane
Current
Load
External
Power
Required
Step Response
@ 63%
Channel Update/
Resolution/
Accuracy
2
single-ended
non-isolated
inputs
none
user configurable
•4 thru 20mA
(default)
•0 thru 20mA
Natural
binary
signed
integer
IE2C
TB/TBS
50mA
+24V dc
10mA
70ms @
notch = 50Hz.
80ms @
notch = 60Hz.
16ms @
notch = 250Hz.
8ms @
notch = 500Hz.
50ms/channel @ notch = 50Hz.
60ms/channel @ notch = 60Hz.
12ms/channel @ notch = 250Hz.
6ms/channel @ notch = 500Hz.
16 bits over 21mA.
Inputs 0.1% FS @ 25
°C.
2
single-ended
non-isolated
outputs
none
user configurable
•4 thru 20mA
(default)
•0 thru 20mA
Natural
binary
signed
integer
OE2C
TB/TBS
50mA
+24V dc
50mA
24
ms
13 bits over 21mA.
Outputs 0.3% FS @ 25
°C.
1734 Intelligent I/O Module Selection
Catalog Number/
Module
Inputs
Outputs
Backplane
Current Load
External Power
Required
Base Assembly
Cat. No. 1734-
1734-IJ, -IK
Encoder/Counter Module
Incremental encoder or single-channel device:
•1734-IJ, 5V TTL single-ended or differential
•1734-IK, 24V dc single-ended
None
160mA
None
TB/TBS
Description — The encoder/counter module is an intelligent I/O module that has a 32-bit counter able to count input frequencies of 1.0M
Hz maximum. Inputs typically come for quadrature-type incremental encoders (x1, x2, or x4). Six bytes of data are transferred from this
module to the processor. One byte of data is transferred from the processor to this module in normal operation. Seventeen bytes of
configuration data are transferred to the module.
1734-VHSC5, -VHSC24
Very-High-Speed
Counter Module
Assembly
Incremental encoder or single-channel device:
•1734-VHSC5, 5V TTL single-ended or differential
•1734-VHSC24, 24V dc single-ended
2 digital outputs (24V dc)
180mA
None
TB, TBS
Assembly
Description — The very-high-speed counter module assembly is a pair of intelligent I/O modules that has a 32-bit counter able to count
input frequencies of 1.0M Hz maximum. Inputs typically come for quadrature-type incremental encoders (x1, x2, or x4). Six bytes of data
are transferred from this module to the processor. One byte of data is transferred from the processor to this module in normal operation.
Fifty four bytes of configuration data are transferred to the module. The module has 2 outputs. These outputs can be tied to any of 4
compare windows.
15-20
Distributed I/O
1793 FLEX Integra and 1794 FLEX I/O
Advantages
FLEX Integra and FLEX I/O products provide a compact
modular I/O assembly that is flexible in its physical
configuration.
• Modularity of I/O and the backplane.
• Compact design of hardware lets it fit into limited panel
space.
• Distributed I/O at locations remote from the processor can
be connected across ControlNet, DeviceNet, or Universal
Remote I/O links.
• Locating I/O near sensors and actuators reduces wiring
costs and complexity.
• Removal and insertion under backplane power of any
1794 I/O module without disruption of any other modules
in the system makes it possible to replace a failed module
while keeping the rest of the system running.
• Replace 1794 I/O modules without rewiring connections
because you can unplug the I/O module from the
separate terminal base.
Functional Design
FLEX I/O modules (1794) offer 4 thru 16 I/O each. FLEX
Integra I/O modules (1793) offer 2, 4, or 16 I/O each. You
can combine FLEX Integra I/O modules (1793) and FLEX I/O
modules (1794) in the same assembly. You can plug
together a maximum of 8 I/O modules (1793 and/or 1794)
into a FLEX I/O assembly, for a maximum of 128 I/O per
assembly. The I/O modules are interfaced to the I/O link thru
an I/O adapter module with a built-in 24V-dc-input power
supply. The I/O modules receive power from the
adapter/power-supply thru the backplane. The
120/230V-ac-to-24V-dc power supply
(1794-PS13,
) is also available for powering the
adapter/power-supply.
Mechanical Design
FLEX Integra and FLEX I/O products are packaged in a
modular I/O assembly. The I/O adapter is always a modular
component of the assembly. The same adapters are used
for both 1793 and 1794 I/O modules.
For 1793 FLEX Integra I/O, the I/O circuitry, the backplane
extension, and the terminal connection points for I/O wiring
are all together in a single integral I/O module.
1794 I/O Adapter on DIN rail
1793 I/O Module
For 1794 FLEX I/O, the assembly is even more modular.
The backplane is formed by modular terminal bases which
also provide terminal connection points for I/O wiring. I/O
circuitry is packaged in separate I/O modules. Each I/O
module plugs into an individual terminal base.
20251
1794 I/O Adapter on DIN rail
1794 Terminal Base
1794 I/O Module
The I/O adapter module plugs into the end terminal base.
You snap the I/O adapter and the terminal bases onto a DIN
rail and plug them together. The ac/dc power supply is
free-standing.
Communication
A FLEX I/O adapter module provides an interface for
communication between the I/O modules and a scanner port
across an I/O link. Each FLEX I/O adapter module
communicates with the I/O modules across the modular
backplane made up of 1793 I/O modules or 1794 terminal
bases. Each I/O adapter module also has a port that
communicates with a scanner port for a programmable
controller processor across either a ControlNet, DeviceNet,
or Universal Remote I/O link.
For more information on 1793 products, see the FLEX
Integra I/O Product Data, pub. 1793-2.1. For more
information on 1794 products, see the FLEX I/O Product
Data, pub. 1794-2.1.
15-21
Distributed I/O
1793 FLEX Integra and 1794 FLEX I/O
Universal Remote I/O Communication
DeviceNet Communication
FLEX Integra
and FLEX I/O
Pneumatic Valve
Variable-Frequency Drive
RediSTATION
20191–M
Universal Remote I/O Link
1771 I/O
(1771-ASB)
1336 PLUS Drive
1794-CE1 1-ft, or
1794-CE3
3-ft extender
cable
A Logix5550 processor with 1756-DNB module (or PLC processor with a
1771-SDN DeviceNet Scanner or an SLC processor with a 1747-SDN
DeviceNet Scanner)
1792 I/O Block
A Logix5550 processor with 1756-DHRIO module (or a
PLC processor with a remote I/O scanner port or an
SLC processor with a 1747-SN Remote I/O Scanner)
FLEX I/O
(1794-ASB)
(1794-ASB)
1791-IOBX
128-I/O Block
ControlNet Communication
20063
Series 9000
photoelectric sensors
Proximity
Sensor
PLC-5/20C processor
1771-ACNR15
FLEX I/O
1784-KTCX15
IBM-PC, XT, AT or
compatible computer
running Rockwell Software
Programming Software or
MMI Software
ControlNet Segment
FLEX Integra I/O
FLEX I/O
(1794-ADN)
(1794-ACNR15)
DeviceNet Network
Class I Div 2 Hazardous
15-22
Distributed I/O
1794 I/O Adapter Modules for FLEX Integra and FLEX I/O
1794-ACN15, -ACNR15, -ADN, -AENT, -ASB, -ASB2, -FLA
A 1794 I/O adapter module can interface 1793 FLEX Integra
and 1794 FLEX I/O modules to I/O scanner ports across an
I/O communication link. I/O adapter modules for 1793/1794
I/O are available for EtherNet/IP, ControlNet, DeviceNet,
Universal Remote I/O, and Extended-Local I/O links.
The FLEX I/O adapter module listed contains a built-in power
supply that converts 24V dc to 5V dc for the backplane to
power the FLEX Integra and FLEX I/O modules.
Specifications
Input Voltage
Nominal: 24V dc
Range: 19.2V thru 31.2V dc (5% ac ripple)
Input Current
0.40A maximum @ 19.2V
Input Power
(from 1794-PS3
or 1794-PS13
Power Supply)
•1794-ACN15, -ACNR15, -ADN, -AENT, -ASB, -ASB2:
7.7W maximum @ 19.2V
•1794-FLA: 7.5W maximum @ 19.2V, 6.0W maximum @
24V
1
Isolation
Voltage
100% tested at 850V dc for 1 second between input power
and backplane
Shock
2
•Operating: 30 g peak acceleration for 11ms (±1)ms
•Storage: 50 g peak acceleration for 11ms (±1)ms
Vibration
2
•Tested 5 g @ 10-500 Hz per IEC 68-2-6
Environmental
Conditions
•Operational temperature: 0 to 60° C (32 to 140° F)
•Storage temperature: -40 to 85° C (Ć40 to 185° F)
•Relative Humidity: 5-95% (without condensation)
Dimensions
(HxWxD)
87 x 68 x 69 mm (3.4 x 2.7 x 2.7 in)
Weight
•1794-ACN, -ACNR, -ADN, -AENT, -ASB, -ASB2:
0.2 kg (0.4 lb)
•1794-FLA: 0.3 kg (0.6 lb)
1
In applications that must be compliant with CSA requirements, use a Separated
Extra-Low-Voltage (SELV) power supply that is compliant with IEC 61010.1, Annex H.
2
To maintain these specifications, you must use DIN rail locks.
1794 I/O Adapter Module Selection
Catalog Number/
Module
Function
Communication
Interface
Communication Rates
Supported
Backplane
Current Output
1794-ACN15
I/O Adapter Module
Interfaces a maximum of eight 1793 and 1794 I/O modules
(128 I/O) to a coax segment of a ControlNet I/O network
Quad-shield RG-6 coax
(ControlNet network)
5M bit/s
640mA
1794-ACNR15
I/O Adapter Module
Interfaces a maximum of eight 1793 and 1794 I/O modules
(128 I/O) to a coax segment of a ControlNet I/O network with
redundant media operation
Quad-shield RG-6 coax
(ControlNet network)
5M bit/s
640mA
1794-ADN
I/O Adapter Module
Interfaces a maximum of eight 1793 and 1794 I/O modules
(128 I/O) to a DeviceNet I/O network
Twisted pair (DeviceNet
network)
125k bit/s, 250k bit/s,
500k bit/s
640mA
1794-AENT
I/O Adapter Module
Interfaces a maximum of eight 1793 and 1794 I/O modules
(128 I/O) to an EtherNet/IP I/O link
10Base-T / 100Base-T
twisted pair (EtherNet/IP
network)
10M bit/s, 100M bit/s
with Auto-switching
640mA
1794-ASB
I/O Adapter Module
Interfaces a maximum of eight 1793 and 1794 I/O modules
(128 I/O) to a Universal Remote I/O link
Twisted pair (Universal
Remote I/O link)
57.6k bit/s, 115.2k bit/s,
230.4k bit/s
640mA
1794-ASB2
I/O Adapter Module
Interfaces a maximum of two 1793 and 1794 I/O modules (32
I/O) to a Universal Remote I/O link
Twisted pair (Universal
Remote I/O link)
57.6k bit/s, 115.2k bit/s,
230.4k bit/s
640mA
1794-FLA
I/O Adapter Module
Interfaces a maximum of eight 1793 and 1794 I/O modules
(128 I/O) to an Extended Local I/O link to a FlexLogix
processor
1794-CE1 or -CE3
(Extended Local I/O link)
Not comparable (parallel)
653mA
15-23
Distributed I/O
1793 FLEX Integra I/O Modules
For 1793 I/O, the I/O circuitry, the backplane extension, and
the terminal connection points for I/O wiring are all packaged
together in an integral I/O module.
Specifications
Shock
Operating:
Non-operating:
30g peak acceleration, 11 (
±1) ms pulse width
50g peak acceleration, 11 (
±1) ms pulse width
Vibration
Tested 5g @ 10-500Hz per IEC 68-2-6
Dimensions (HxWxD)
4 I/O — 80 x 55 x 69 mm (3.2 x 2.2 x 2.7 in)
16 I/O — 80 x 94 x 69 mm (3.2 x 3.7 x 2.7 in)
Weight
4 I/O — 0.1 kg (0.3 lb)
16 I/O — 0.2 kg (0.5 lb)
1793 Digital dc I/O Combination Module Selection
Inputs
Outputs
Operating
Voltage
Signal Delay
Maximum
Off-State
Current
Number
of Inputs
Operating
Voltage
Max Contin.
Current per
Output
Number of
Outputs
Type of Wire
Clamp
Module Cat.
No. 1793-
Backplane
Current Load
19.2-31.2 dc
sink (so rce
512
ms
1
1.5mA
2
19.2-31.2 dc
so rce
2.0A
(1 0mA min)
2
Screw
IB2XOB2P
20mA
sink (source
load)
source
(1.0mA min)
Spring
IB2XOB2PS
1
On/off = 512
ms default. Programmable to 512ms, 1ms, 2ms, 4ms, 8ms, 16ms, 32ms, or 64ms.
1793 Digital dc Input Module Selection
Type
Voltage
Category
Operating
Voltage
Signal
Delay
Max
Off-State
Current
Number
of
Inputs
Type of
Wire
Clamp
Module
Cat. No.
1793-
Backplane
Current
Load
Applications
dc
24 sink
(
19.2-31.2
512
ms
1
1.5mA
4
Screw
IB4
10mA
General-purpose 24V dc inputs including
i it
(source
load)
m
Spring
IB4S
g
proximity sensors
load)
250
ms
2
16
Screw
IB16
25mA
m
Spring
IB16S
24 source
( i k l d)
Screw
IV16
(sink load)
Spring
IV16S
1
On/off = 512
ms default. Programmable to 512ms, 1ms, 2ms, 4ms, 8ms, 16ms, 32ms, or 64ms.
2
On/off = 250
ms default. Programmable to 250ms, 500ms, 1ms, 2ms, 4ms, 8ms, 16ms, or 32ms.
1793 Digital dc Output Module Selection
Type
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Continu-
ous Current
Per Module
Number of
Outputs
Type of
Wire
Clamp
Module
Cat. No.
1793-
Backplane
Current
Load
Applications
dc
24
19.2-31.2
500mA
(1 0
i )
2A
4
Screw
OB4P
20mA
Electronically fused outputs —
t
ti
t
source
(1.0mA min)
Clamp
OB4PS
y
automatic reset
8A
16
Screw
OB16P
80mA
Clamp
OB16PS
24
i k
Screw
OV16P
sink
Clamp
OV16PS
1793 Digital Contact Output Module Selection
Type
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Continu-
ous Current
Per Module
Number
of
Outputs
Type of
Contact
Outputs
Type of
Wire
Clamp
Module
Cat. No.
1793-
Backplane
Current
Load
Applications
ac/dc
5-240
3A @ 250V ac
i ti
12A
4
N.O.
t t
Screw
OW4
70mA
Individually isolated contact
t t
resistive
contacts
Clamp
OW4S
y
outputs
15-24
Distributed I/O
1793 FLEX Integra I/O Modules
1793 Analog I/O Module Selection
Number
of Inputs/
Outputs
Voltage Range
Current Range
Data
Format
Type of
Wire
Clamp
Module
Cat. No.
1793-
B-plane
Current
Load
External
Power
Required
Step Re-
sponse
@ 63%
Channel Update/
Resolution/
Accuracy
2 non-
isolated
inputs
1 single-
user configurable
•±10
•0 thru 10
user configurable
1
•4 thru 20mA (default)
•0 thru 20mA
Natural
binary
Left-
justified
Screw
IE2XOE1
20mA
+24V dc
100mA
(not
including
c rrent
E in
9.4ms
I in
18 2ms
256
ms/2-input channels.
1.024ms/1-output channel.
Input 12-bit resolution or
11-bit resolution plus sign.
O tp t 12-bit resol tion pl s
1 single-
ended
outputs
Spring
IE2XOE1S
current
outputs)
18.2ms
out
24ms
Output 12-bit resolution plus
sign.
Inputs 0.20% FS @ 25
°C.
E Out 0.133% FS @ 25
°C.
I Out 0.425% FS @ 25
°C.
4 non-
isolated
inp ts
user configurable
•±10
•0 thr 10
user configurable
1
•4 thru 20mA (default)
•0 thr 20mA
Natural
binary
Left
Screw
IE4
20mA
+24V dc
60mA
E in
9.4ms
I in
256
ms/4 channels.
12-bit resolution (unipolar).
11 bit resol tion pl s sign
inputs
•0 thru 10
•0 thru 20mA
Left-
justified
Spring
IE4S
I in
18.2ms
11-bit resolution plus sign
(bipolar).
0.20% FS @ 25
°C.
2 single-
ended
o tp ts
user configurable
•±10
•0 thr 10
user configurable
•4 thru 20mA (default)
•0 thr 20mA
Natural
binary
Left
Screw
OE2
20mA
+24V dc
70mA (not
incl ding
24ms
1.024ms/2 channels.
12-bit resolution plus sign.
E O t 0 133% FS @ 25
°C
outputs
•0 thru 10
•0 thru 20mA
Left-
justified
Spring
OE2S
including
current
outputs)
E Out 0.133% FS @ 25
°C.
I Out 0.425% FS @ 25
°C.
1
The module does not supply input current loop power.
1794 FLEX I/O Modules
For 1794 I/O, the assembly is even more modular. I/O are
packaged in I/O modules. Each I/O module plugs into an
individual terminal base. The terminal bases are modules
that make up the backplane and provide terminal connection
points for I/O wiring.
Specifications
Shock
Operating:
Non-operating:
30g peak acceleration, 11 (
"1) ms pulse width
50g peak acceleration, 11 (
"1) ms pulse width
Vibration
Tested 5g @ 10-500Hz per IEC 68-2-6
Dimensions (HxWxD)
46 x 94 x 53 mm (1.8 x 3.7 x 2.1 in)
Weight
0.1 kg (0.3 lb)
1794 Digital dc I/O Combination Module Selection
Inputs
Outputs
Operating
Voltage
Signal Delay
Maximum
Off-State
Current
Number
of Inputs
Operating
Voltage
Max Contin.
Current per
Output
Number of
Outputs
Module Cat.
No. 1794-
Terminal Base
Cat. No. 1794-
Backplane
Current Load
19.2-31.2 dc
sink (source
load)
0.25ms
1
1.5mA
10
19.2-31.2 dc
source
1.0mA min
2.0A max
6
IB10XOB6
TB3, TB3S
35mA
1
On/off = 0.25ms default. Programmable to 0.25ms, 0.5ms, 1ms, 2ms, 4ms, 8ms, 16ms, or 32ms.
Note 1: Each 1794 I/O module requires a terminal base
Note 2: If you use external terminal blocks, wherever a 1794-TB3 is listed, a 1794-TB2 can be used instead.
15-25
Distributed I/O
1794 FLEX I/O Modules
1794 Digital ac Input Module Selection
Type
Voltage
Category
Operating
Voltage
Signal
Delay
Max
Off-State
Current
Number of
Inputs
Module
Cat. No.
1794-
Terminal
Base Cat.
No.1794-
Backplane
Current Load
Applications
ac
120
85-132
on=8.6ms
1
off=26.6ms
2.9mA
8
IA8
TBN, TB2,
TB3, TB3S
30mA
General-purpose120V ac inputs
85-132
on=8.6ms
1
off=26.6ms
2.9mA
8
IA8I
TBN, TB3,
TB3S
30mA
Individually isolated 120V ac inputs
74-132
on=7.5ms
2
off=26.5ms
2.87mA
16
IA16
TBN, TB3,
TB3S
20mA
General-purpose 120V ac inputs
220
159-264
on=7.5ms
2
off=26.5ms
2.6mA
8
IM8
TBN
30mA
General-purpose 220V ac inputs
1
On = 8.6ms by default. Programmable to 8.6, 9, 10, 12, 16, 24, 40, or 72ms. Off = 26.6ms by default. Programmable to 27, 28, 30, 34, 42, 58, or 90ms.
2
On = 7.5ms by default. Programmable to 8.6, 9, 10, 12, 16, 24.5, or 42ms. Off = 26.5ms by default. Programmable to 27, 28, 29, 31, 35, 44, or 60.5ms.
1794 Digital dc Input Module Selection
Type
Voltage
Category
Operating
Voltage
Signal
Delay
Max
Off-State
Current
Number
of
Inputs
Module
Cat. No.
1794-
Terminal
Base Cat.
No. 1794-
Backplane
Current
Load
Applications
dc
24
sink
(
19.2-31.2
256
ms
1
1.5mA
8
IB8
TB3, TB3S
30mA
General-purpose 24V dc inputs including
proximity sensors
(source
load)
512
ms
2
1.5mA
16
IB16
TB3, TB3S
30mA
General-purpose 24V dc inputs including
proximity sensors
24 source
(sink load)
256
ms
1
1.5mA
16
IV16
TB3, TB3S
30mA
General-purpose 24V dc inputs including
proximity sensors
48 sink
(source
load)
30-60
256
ms
1
1.5mA
16
IC16
TB3, TB3S
25mA
General-purpose 48V dc inputs including
proximity sensors
1
On/off = 256
ms default. Programmable to 256ms, 512ms, 1ms, 2ms, 4ms, 8ms, 16ms, or 32ms.
2
On/off = 512
ms default. Programmable to 512ms, 1ms, 2ms, 4ms, 8ms, 16ms, 32ms, or 64ms.
1794 Digital ac Output Module Selection
Type
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Continu-
ous Current
Per Module
Number of
Outputs
Module
Cat. No.
1794-
Terminal
Base Cat.
No. 1794-
Backplane
Current Load
Applications
ac
120
85-132
750mA @ 35
° C
(5mA min)
4A
8
OA8
TBNF, TB3,
TB3S, TBN
80mA
General-purpose
120V ac outputs
750mA @ 35
° C
(5mA min)
4A
8
OA8I
TBNF, TB3,
TB3S, TBN
80mA
Individually isolated
120V ac outputs for
motor control centers
500mA @ 55
° C
(50mA min)
4A
16
OA16
TBN, TB3,
TB3S
80mA
General-purpose
120V ac outputs
220
159-264
500mA @ 35
° C
(50mA min)
4A
8
OM8
TBN
60mA
General-purpose
220V ac outputs
Note 1: Each 1794 I/O module requires a terminal base
Note 2: If you use external terminal blocks, wherever a 1794-TB3 is listed, a 1794-TB2 can be used instead.
15-26
Distributed I/O
1794 FLEX I/O Modules
1794 Digital dc Output Module Selection
Type
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Continuous
Current Per Mod-
ule
Number
of
Outputs
Module
Cat. No.
1794-
Terminal
Base Cat.
No. 1794-
Backplane
Current
Load
Applications
dc
24
source
19.2-31.2
500mA
(1.0mA min)
4A
8
OB8
TB3,
TB3S, TBN
60mA
General-purpose
24V dc outputs
dc
24
source
19.2-31.2
2A
(1.0mA min)
10A
8
OB8EP
TB3,
TB3S, TBN
73mA
24V dc outputs with electronic
fusing
500mA
(1.0mA min)
8A
16
OB16
TB3, TB3S
80mA
General-purpose
24V dc outputs
dc
24
source
19.2-31.2
500mA
(1.0mA min)
8A
16
OB16P
TB3, TB3S
60mA
Electronically fused outputs —
automatic reset
dc
24
sink
19.2-31.2
500mA
(1.0mA min)
8A
16
OV16
TB3, TB3S
80mA
General-purpose
24V dc outputs
dc
24
sink
19.2-31.2
500mA
(1.0mA min)
8A
16
OV16P
TB3, TB3S
80mA
Electronically fused outputs —
automatic reset
dc
48
source
30-60
500mA
(2.0mA min)
8A
16
OC16
TB3, TB3S
80mA
General-purpose
24V dc outputs
1794 Digital Contact Output Module Selection
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Cont
Current Per
Module
Number
of
Outputs
Type of
Contact
Outputs
Module
Cat. No.
1794-
Terminal
Base Cat.
No. 1794-
Backplane
Current Load
Applications
5-125V dc
5-240V ac
5 thru 240
2A @ 240V ac
resistive
16A
8
N.O. relay
contact
outputs
OW8
TBNF, TB3,
TB3S, TBN
69mA
Individually isolated
contact outputs
1794 Analog I/O Module Selection
Number
of Inputs/
Outputs
Voltage Range
Current Range
Data
Format
Module
Cat. No.
1794-
Terminal
Base Cat.
No. 1794-
B-plane
Current
Load
External
Power
Required
Step Re-
sponse
@ 63%
Channel Update/
Resolution/
Accuracy
4 single-
ended
inputs
2 single-
ended
outputs
user configurable
•±10
•0 thru 10
user configurable
1
•4 thru 20mA (default)
•0 thru 20mA
Natural
binary
Left-
justified
IE4XOE2
TB3, TB2,
TB3S,
TB3T,
TB3TS
20mA
+24V dc
70mA
E in
9.4ms
I in
18.2ms
out
24ms
256
ms/4-input channels.
1.024ms/2-output channels.
Input 12-bit resolution or
11-bit resolution plus sign.
Output 12-bit resolution plus
sign.
Inputs 0.29% FS @ 25
°C.
Outputs 0.133% FS @ 25
°C.
2 isolated
inputs
2 isolated
outputs
user configurable
•0 (output
default)
•±10
•0 thru 10
•±5
•0 thru 5
user configurable
1
•0mA (output default)
•4 thru 20mA
•0 thru 20mA
•±20mA (input only)
Natural
binary
IF2XOF2I
TB3,
TB3S,
TB3T,
TB3TS,
TBN
50mA
+24V dc
150mA
in
0.6, 6.7,
13.4, or
26.7ms
out
25ms
2.5, 5.0, or 7.5ms/2-inputs..
2.5 or 5.0ms/2-outputs.
Input 16-bit resolution or
15-bit resolution plus sign.
Output 15-bit resolution plus
sign.
Inputs 0.1% FS @ 25
°C.
Outputs 0.1% FS @ 25
°C.
8 single-
ended
inputs
user configurable
•±10
•0 thru 10
user configurable
1
•4 thru 20mA (default)
•0 thru 20mA
Natural
binary
Left-
justified
IE8
TB3, TB2,
TB3S,
TB3T,
TB3TS
20mA
+24V dc
60mA
E in
9.4ms
I in
18.2ms
256
ms/8 channels.
12-bit resolution (unipolar).
11-bit resolution plus sign
(bipolar). 0.29% FS @ 25
°C.
4 isolated
inputs
user configurable
•±10
•0 thru 10
•±5
•0 thru 5
user configurable
1
•4 thru 20mA (default)
•0 thru 20mA
•±20mA
Natural
binary
IF4I
TB3,
TB3S,
TB3T,
TB3TS,
TBN
50mA
+24V dc
60mA
0.6, 6.7,
13.4, or
26.7ms
2.5, 5.0, or 7.5ms/4
channels.
16-bit resolution (unipolar).
15-bit resolution plus sign
(bipolar). 0.1% FS @ 25
°C.
Note 1: Each 1794 I/O module requires a terminal base
Note 2: If you use external terminal blocks, wherever a 1794-TB3 is listed, a 1794-TB2 can be used instead.
15-27
Distributed I/O
1794 FLEX I/O Modules
1794 Analog I/O Module Selection (Continued)
Number
of Inputs/
Outputs
Voltage Range
Current Range
Data
Format
Module
Cat. No.
1794-
Terminal
Base Cat.
No. 1794-
B-plane
Current
Load
External
Power
Required
Step Re-
sponse
@ 63%
Channel Update/
Resolution/
Accuracy
8 RTD
inputs
RTD sensors supported:
•100W Pt, Eur (385) (–200 to +870°C)
•100W Pt, U.S. (3916) (–200 to +630°C)
•200W Pt, Eur (385) (–200 to +630°C)
•500W Pt, Eur (385) (–60 to +250°C)
•100W Nickel (–60 to +250°C)
•120W Nickel (–80 to 290°C)
•200W Nickel (–60 to +250°C)
•500W Nickel (–60 to +250°C)
•10W Copper (–200 to 260°C)
Natural
binary
IR8
TB3, TB2,
TB3S,
TB3T,
TB3TS
20mA
+24V dc
140mA
not
available
Programmable from 28 thru
325ms/channel.
16-bit resolution.
0.05% FS max in normal
mode.
0.01% FS typical in
enhanced mode.
8 single-
ended
thermo-
couple
or RTD
inputs
(2 sets
of 4)
RTD sensors supported:
•100W Pt, Eur (385) (–200 to +870°C)
•100W Pt, U.S. (3916) (–200 to +630°C)
•200W Pt, Eur (385) (–200 to +400°C)
•200W Pt, U.S. (3916) (–200 to +400°C)
•100W Nickel (–60 to +250°C)
•120W Nickel (–80 to 320°C)
•200W Nickel (–60 to +200°C)
•10W Copper (–200 to 260°C)
Thermocouples supported:
•Type B: 300 to 1800°C (572 to 3272°F)
•Type E: –270 to 1000°C (–454 to 1832°F)
•Type J: –210 to 1200°C (–346 to 2192°F)
•Type K: –270 to 1372°C (–454 to 2502°F)
•Type TXK/XK (L): –270 to 1300°C (–454
to 2372
°F)
•Type N: –270 to 1300°C (–454 to 2372°F)
•Type R: –50 to 1768°C (–58 to 3214°F)
•Type S: –50 to 1768°C (–58 to 3214°F)
•Type T: –270 to 400°C (–454 to 752°F)
Natural
binary
IRT8
TB3G,
TB3GS
40mA
+24V dc
85mA
not
available
Programmable from 4.5 thru
8.3ms/8 channels.
14-bit resolution.
0.1% of FS in mV mode.
8 single-
ended
thermo-
couple
inputs
•±76.5mV
Thermocouples supported:
•Type B: 300 to 1800°C (572 to 3272°F)
•Type C: 0 to 2315°C (23 to 4199°F)
•Type E: –270 to 1000°C (–454 to 1832°F)
•Type J: –210 to 1200°C (–346 to 2192°F)
•Type K: –270 to 1372°C (–454 to 2502°F)
•Type N: –270 to 1300°C (–454 to 2372°F)
•Type R: –50 to 1768°C (–58 to 3214°F)
•Type S: –50 to 1768°C (–58 to 3214°F)
•Type T: –270 to 400°C (–454 to 752°F)
Natural
binary
IT8
TB3T
20mA
+24V dc
140mA
not
available
Programmable from 28 thru
325ms/channel.
16-bit resolution.
0.025% FS with fixed digital
filter (@ 24
°C.(±5°C)).
0.05% FS without fixed
digital filter (@ 24
°C.(±5°C)).
4 single-
ended
outputs
user configurable
•±10
•0 thru 10
user configurable
•4 thru 20mA (default)
•0 thru 20mA
Natural
binary
Left-
justified
OE4
TB3,
TB2,
TB3S,
TB3T,
TB3TS,
TBN
20mA
+24V dc
70mA
(not
including
current
outputs)
24ms
1.024ms/4 channels.
12-bit resolution plus sign.
0.133% FS @ 25
°C.
4 isolated
outputs
user configurable
•0 (default)
•±10
•0 thru 10
•±5
•0 thru 5
user configurable
•0mA (default)
•4 thru 20mA
•0 thru 20mA
Natural
binary
OF4I
TB3,
TB3S,
TB3T,
TB3TS,
TBN
50mA
+24V dc
70mA
(not
including
current
outputs)
<25
ms
2.5 or 5.0ms/4 channels.
15-bit resolution plus sign.
0.1% FS @ 25
°C.
1
The module does not supply input current loop power.
Note 1: Each 1794 I/O module requires a terminal base
Note 2: If you use external terminal blocks, wherever a 1794-TB3 is listed, a 1794-TB2 can be used instead.
15-28
Distributed I/O
1794 FLEX I/O Modules
1794 Intelligent I/O Module Selection
Catalog Number/ Module
Inputs
Outputs
Backplane
Current Load
External Power
Required
Terminal Base
Cat. No. 1794-
1794-ID2
Incremental Encoder
Mod le
A set of 4 digital inputs for each of 2
counter registers.
None
5mA
12-24V dc
75mA @ 24V dc
TB3, TB3S,
TBN, TBNF
Module
Description — The incremental encoder module is an intelligent I/O module that has 2 counter registers and a set of 4 inputs (encoder
channels A and B, plus inputs G and Z) for each counter register. The counter is compatible with input frequencies of 100k Hz maximum.
A low-pass filter lets you control the cut-off frequency. The count, the direction, and other status information are block-transferred to the
processor. Preset and other configuration information such as mode selection is block-transferred to the module. The channel A and B
inputs can be used for up/down counting in a quadrature mode (x1, x2, or x4). In another mode, the counter is incremented on each
transition of A with the direction controlled by B. G can be used to enable or disable counting. Z can be used to trigger a preset of the
counter register.
1794-IJ2
Frequency Input Module
A set of 2 digital inputs for each of 2
frequency counter channels.
A digital output for each of 2
frequency counter channels.
30mA
19.2-31.2V dc
180mA @ 24V dc
TB3G, TB3GS
Description — The frequency input module is an intelligent I/O module that has 2 frequency counter channels able to count input
frequencies of 32,767Hz maximum. Each frequency counter channel has a frequency input, a gate input and an output. The module is
capable of accepting inputs from vortex, magnetic pickup, hard contact, and IEC1+ proximity sensing devices. The frequency value and
other status information is block-transferred to the processor. Configuration information, including programming of the outputs is
block-transferred to the module. For each channel, the output is configurable as a function of the input frequency of the channel.
1794-IP4
4-Channel Pulse Counter
Mod le
Digital inputs for each of 4 pulse-
transmitter interface channels.
None
5mA
10.8-26.4V dc
75mA @ 24V dc
TB3, TB3S,
TBN, TBNF
Module
Description — The pulse counter module is an intelligent I/O module that has 4 pulse-transmitter interface channels with differential
(12–24V dc) inputs. Each channel is able to count input frequencies of 100kHz maximum. The module’s primary use is accurate
high-speed counting of pulses from flow meters or density meters. Each channel has two 16-bit counters to use in either of 2 basic
modes. In one mode, one 16-bit counter is used to count the number of pulses received during a selected interval, and the other 16-bit
counter is used to measure the period of time it takes to receive a given number of pulses. In the other mode, the two 16-bit counters are
cascaded into a 32-bit counter used to measure the period of time it takes to receive a given number of pulses. The measured count and
period, and other status information are block-transferred to the processor. Configuration information is block-transferred to the module.
1794-VHSC
Very-High-Speed Counter
Mod le
Digital inputs for each of 2 counter
registers.
4 digital outputs (5V or 15-24V dc
sourcing)
75mA
19.2-31.2V dc
100mA @ 24V dc
TB3G, TB3GS
Module
Description — The very-high-speed counter module is an intelligent I/O module that has two 24-bit counter registers. The module has 4
outputs with turn-on times of approximately 25
ms. Any output can be used with either counter. The module has a set of 3 inputs (encoder
channels A, B, and Z) for each counter register. Each counter can be incremented at frequencies of 1.0MHz maximum. The channel A
and B inputs can be used for up/down counting in a quadrature mode (x1, x2, or x4). In another mode, the counter is incremented on
each positive transition of A with the direction controlled by B. The module can be used to measure the duration of an input pulse by
counting the number of internal clock pulses during the input pulse duration. The module can measure the rate of pulses received over a
period specified by a number of internal clock pulses. Each output can be controlled by various count comparisons. An output can also
be used for pulse-width modulation. In that mode, an internal clock is used to increment the counter, which is used to establish the
selected period; a value transferred from the processor is used to modulate the pulse width. The measured count and period, and other
status information are transferred to the processor. Configuration and control values are transferred to the module. This module is only
compatible with a ControlNet I/O adapter (1794-ACN15 or -ACNR15 series B or later).
FLEX I/O Communication Modules
FLEX I/O Communication Module Selection
Catalog Number/
Module
Number of Ports
Communication Port Protocol
Backplane Current Load
Terminal Base Cat. No.
Optional Cable Kit
Cat. No. (length)
1203-FM1
SCAN
t
2
SCANport
160mA
1203-FB1
•1202-C03 (0.33m)
1202 C10 (1 0 )
SCANport
Communication
Module
Description — The SCANport communication module interfaces 2 SCANport communication ports to the flexbus
backplane. You can install a maximum of 4 SCANport communication modules in a FLEX I/O assembly for a maximum
of 8 ports. Each port can interface a SCANport-enabled drive or power product thru an I/O adapter module to a
ControlNet, DeviceNet, or Universal Remote I/O link. SCANport communication provides data for logic
command/feedback, analog reference/feedback, and channel enable/status. For each module, you also need a
1203-FB1 terminal base. For each port, you also need to select a cable kit. SCANport-enabled products include: 1305
AC Drives, 1336 PLUS AC Drives, 1336 PLUS II AC Drives, 1336 IMPACT AC Drives, 1336 FORCE AC Drives, 1336
SPIDER AC Drives, 1336 REGEN package, 1397 DC Drives, 1557 Medium Voltage AC Drives, 1394 Motion Systems,
SMC Dialog Plus, SMP Smart Motor Protector, and 2364 Regenerative DC Bus Supply Unit.
(
)
•1202-C10 (1.0m)
•1202-C30 (3.0m)
•1202-C90 (9.0m)
Note 1: Each 1794 I/O module requires a terminal base
Note 2: If you use external terminal blocks, wherever a 1794-TB3 is listed, a 1794-TB2 can be used instead.
Note 3: Sample configuration templates are available at our web site:
15-29
Distributed I/O
1794 FLEX I/O Terminal Bases and Extender Cables
Adapter on DIN rail
20251
1794 Terminal Base
1794 I/O Module
Each 1794 FLEX I/O module requires a terminal base that
you snap onto the DIN rail to the right of the I/O adapter. You
plug each I/O module into its terminal base.
Terminal bases make up a modular backplane for 1794
FLEX I/O modules and make up a modular terminal block for
I/O connections. Each terminal base provides backplane
connections between the I/O adapter module and I/O
modules. Each also provides terminal connection points for
an I/O module.
• Wire sensors/actuators directly to the terminal base.
• No space wasted for unused I/O module slots. You only
add the number of terminal bases needed for the number
of I/O modules.
• No space wasted for separate terminal blocks. FLEX I/O
terminal bases provide all the screw terminals you need
for two-wire or three-wire sensors/actuators in the same
compact space.
• You can mount the terminal bases in horizontal or vertical
rows.
• Alternatively, you can arrange your modular FLEX I/O
assembly in two rows. Use an extender cable (1 ft or 3 ft)
to connect the two rows.
FLEX I/O
FLEX I/O
1794-CE1 1-ft or
1794-CE3 3-ft
extender cable
(I/O Adapter)
Specifications
Shock
Operating:
Non-operating:
30g peak acceleration, 11 (
±1) ms pulse width
50g peak acceleration, 11 (
±1) ms pulse width
Vibration
Tested 5g @ 10-500Hz per IEC 68-2-6
Terminal Screw Torque
0.79-1.02 N-m (7-9 pound-inch)
1794 Terminal Bases and Extender Cables Selection
Number of
Terminals
Wire Clamping
Type
Special Features
Catalog
number
Weight
kg (lb)
Dimensions
(HxWxD)
36
Screw
None
1794-TB2
52
Screw
None
1794-TB3
52
Spring
None
1794-TB3S
52
Screw
Cold-junction-compensation connections for thermocouple inputs.
1794-TB3T
94 x 94 x 69 mm
52
Spring
Cold-junction-compensation connections for thermocouple inputs.
1794-TB3TS
0 2 (0 5)
94 x 94 x 69 mm
(3.7 x 3.7 x 2.7 in)
52
Screw
Individual terminals used with certain I/O modules.
1794-TB3G
0.2 (0.5)
(3.7 x 3.7 x 2.7 in)
with module installed
in b se
52
Spring
Individual terminals used with certain I/O modules.
1794-TB3GS
in base
20
Screw
Cover for terminals.
1794-TBN
20
Screw
Fused connection points for the I/O, with cover for terminals.
1794-TBNF
not applicable
Screw
Required with 1203-FM1 module.
1203-FB1
This extender cable lets you arrange your modular FLEX I/O assembly in two rows. You can mount the rows
ith
h i
t ll
ti ll
1794-CE1
0.1 (0.2)
0.3m (1 ft)
y
g y
y
either horizontally or vertically.
1794-CE3
0.1 (0.2)
0.9m (3 ft)
15-30
Distributed I/O
1794 FLEX I/O Power Supplies
1794-PS13, -PS3
The I/O modules are interfaced to the I/O link thru an I/O
adapter module with a built-in 24V-dc-input power supply.
The I/O modules receive power from the
adapter/power-supply thru the backplane. The
120V-ac-to-24V-dc power supply (1794-PS13, -PS3) is also
available for powering the adapter/power-supply.
General Specifications
Operating Temperature:
0 to 55
° C (32 to 131° F)
Storage Temperature:
-40 to 85
° C (-40 to 185° F)
Relative Humidity:
5 to 95% (without condensation)
Shock
Operating:
Non-operating:
30g peak acceleration, 11 (
±1) ms pulse width
50g peak acceleration, 11 (
±1) ms pulse width
Vibration
Tested 5g @ 10-500Hz per IEC 68-2-6
Power Supply Selection
Power
Supply
Cat. No.
Nominal
Input Voltage
Input
Voltage
Range
Frequency
Maximum
Real Input
Power
Maximum
Apparent
Input Power
Maximum
Xformer
Load
User Output
Current
Dimensions
in mm (Inches)
(W
H D)
Weight in kg
(pounds)
1794-PS13
120/230V ac
85-265V ac
47-63 Hz
36W
53VA
90VA
1.3A @ 24V dc
87
68 69
(3.4
2.7 2.7)
0.2
(0.5)
1794-PS3
120/230V ac
85-265V ac
47-63 Hz
86W
205VA
250VA
3.0A @ 24V dc
87
94 69
(3.4
3.7 2.7)
0.4
(0.8)
1794 Power Requirements and Transformer Sizing
Power Requirements and Transformer Sizing
Each ac-input power supply generates a shutdown signal on
the backplane whenever the ac line voltage drops below its
lower voltage limit. It removes the shutdown signal when the
line voltage comes back up to the lower voltage limit. This
shutdown is necessary to help ensure that only valid data is
stored in memory.
The external transformer rating (in VA) of each power supply
is greater than its real input power (in Watts) because a
capacitor-input ac/dc supply draws power only from the peak
of the ac voltage wave form. If the transformer is too small, it
clips the peak of the sine wave; when the voltage is still
above the lower voltage limit, the power supply will sense this
clipped wave form as low voltage and could prematurely shut
down modules in the chassis.
In the following graphs, we display the backplane current
load or output current load on the vertical axis.
For the dc-input power supply, we display the input real
power in watts. For each ac-input power supply, we display
the input real power in watts, apparent power in VA, and the
transformer load in VA, each in a separate graph.
• Use the real power value in watts for determining the
amount of heat dissipation you will have inside the
enclosure.
• Use the apparent power value in VA for estimating power
cost.
• Use the transformer load value in VA of each power
supply plus all other loads on a transformer to determine
the required transformer size.
15-31
Distributed I/O
1794 Power Requirements and Transformer Sizing
Specifications
0.0
0.2
0.4
0.6
0.8
3
4
5
6
7
8
1794-ACN, -ACNR
dc/dc
Real Power (Watts)
Backplane
Current Load
(Amps)
0.0
0.2
0.4
0.6
0.8
3
4
5
6
7
8
1794-ADN
dc/dc
Real Power (Watts)
Backplane
Current Load
(Amps)
0.0
0.2
0.4
0.6
0.8
4
5
6
7
8
9
1794-ASB, -ASB2
dc/dc
Real Power (Watts)
Backplane
Current Load
(Amps)
0.0
0.2
0.4
0.6
0.8
1
2
3
4
5
6
1794-FLA
dc/dc
Real Power (Watts)
Backplane
Current Load
(Amps)
0.0
0.3
0.6
0.9
1.2
1.5
0
15
30
45
60
Apparent Power (VA)
Real Power (Watts)
Output
Current Load
(Amps)
Transformer Load (VA) =
Real Power (Watts) x 2.5
0.0
0.3
0.6
0.9
1.2
1.5
0
10
20
30
40
0.0
0.3
0.6
0.9
1.2
1.5
0
20
40
60
80
100
1794-PS13
ac/dc
0
1
2
3
0
50
100
150
200
250
Apparent Power (VA)
Real Power (Watts)
Output
Current Load
(Amps)
Transformer Load (VA)
0
1
2
3
0
20
40
60
80
100
0
1
2
3
0
50
100
150
200
250
1794-PS3
ac/dc
15-32
Distributed I/O
1797 FLEX Ex Intrinsically Safe I/O
Advantages
FLEX Ex I/O products provide an intrinsically safe (IS)
modular I/O assembly that can be located in hazardous
areas.
• Intrinsically safe I/O products can be mounted near
controlled equipment in the hazardous areas. This
eliminates the need for intrinsically safe barriers/isolators
between the I/O products and the controlled equipment.
• Modularity of I/O and the backplane.
• Compact design of hardware lets it fit into limited panel
space.
• Distributed I/O at locations remote from the processor can
be connected across ControlNet I/O links.
• Locating I/O near sensors and actuators reduces wiring
costs and complexity.
• Removal and insertion under power (backplane power
and I/O circuit power) of any I/O module without disruption
of any other modules in the system makes it possible to
replace a failed module while keeping the rest of the
system running.
• Rated for Class I Div 1 / Zone 1 to allow mounting in
hazardous locations.
• Conformal Coating of all FLEX Ex modules provides
protection against corrosive elements.
Functional Design
FLEX Ex I/O modules (1797) offer 4 thru 16 I/O each. You
can plug together a maximum of 8 FLEX Ex I/O modules with
a FLEX Ex I/O adapter, for a maximum of 128 I/O per
assembly.
In one configuration, the I/O modules are interfaced thru a
FLEX Ex I/O adapter module (1797-ACNR15) to a coax
ControlNet segment that is confined to the hazardous area
(page 15-33).
This coax ControlNet Ex segment is interfaced
thru a repeater adapter module
(1797-RPA, page 15-35)
and
fiber repeater module
(1797-RPFM, page 15-35)
to a
fiber-optic ControlNet segment which is fed thru from the safe
area. A FLEX Ex power supply
(1797-PS1N, -PS1E, -PS2N,
-PS2E, page 15-38)
powers the FLEX Ex repeater adapter
module, fiber repeater module, I/O adapter module, and I/O
modules individually. Each I/O module in turn provides the
power for its I/O circuits (sensors/actuators).
In a second possible configuration,
(page 15-33)
FLEX Ex
I/O modules in a hazardous area can be connected thru an
extender cable (1794-CE1 or -CE3) to a bus isolator module
(1797-BIC) in a safe area. The 1797-BIC is connected thru a
bus isolator connector (1797-CEC) and a FLEX I/O
backplane to a FLEX I/O adapter of any kind.
In a third possible configuration
(page 15-33)
, sensors and
actuators in a hazardous area can be connected to FLEX I/O
modules (connected thru a 1797-BIC and 1797-CEC to a
FLEX I/O adapter of any kind) in a safe area.
In a fourth possible configuration
, FLEX Ex I/O
modules in a hazardous area can be connected thru an
extender cable (1794-CE1 or -CE3) and a feed-thru
connector (1797-CEFTE or -CEFTN) into an explosion-proof
enclosure. Inside the enclosure, the feed-thru connector is
connected thru an extender cable (1797-CE1 or -CE3) and
thru a 1797-BIC and 1797-CEC to a FLEX I/O adapter of
any kind.
Mechanical Design
The FLEX Ex I/O assembly is modular. I/O circuitry is
packaged in I/O modules. Each I/O module plugs into an
individual terminal base. The modular terminal bases form
the backplane and provide terminal connection points for I/O
wiring. The I/O adapter module plugs into the end terminal
base. You snap the I/O adapter and the terminal bases onto
a DIN rail and plug them together. In a separate assembly, a
repeater adapter module (1797-RPA) and one or two
fiber-optic port modules (1797-RPFM) snap together on a
DIN rail. The power supply is free-standing.
I/O Adapter on DIN rail
1797 Terminal Base
1797 I/O Module
15-33
Distributed I/O
1797 FLEX Ex Intrinsically Safe I/O
Typical Configurations
Fiber
Repeater
Module
(1786-RPFM)
Coax ControlNet Ex segment
Safe Area
1797-ACNR15
Fiber
Repeater
Module
(1797-RPFM)
Repeater
Adapter
Module
(1797-RPA)
FLEX Ex
Power Supply
(1797-PS1N,
-PS1E, -PS2N,
or -PS2E)
PLC-5/80C
processor
Hazardous Area
(1797-RG6)
Coax ControlNet segment
Repeater
Adapter
Module
(1786-RPA)
Unsafe
Power
IS Power
IS Power
Fiber-optic ControlNet Ex segment
FLEX Ex I/O
FLEX Ex I/O
1797-BIC
1797-CEC
Repeater
Adapter
Module
(1786-RPA)
1797-BIC
1797-CEC
FLEX I/O
FLEX I/O
Adapter
FLEX I/O
Adapter
Sensors/
Actuators
1794-CE3 Extender Cable
1797-BIC
1797-CEC
FLEX I/O
Adapter
1794-CE3
Extender Cable
1797-CE1S
Extender Cable
FLEX Ex I/O
I/O Communication Link
1797-CEFTE or
1797-CEFTN
I/O Circuit Wiring
Unsafe
Power
Unsafe
Power
IS Power
for I/O Circuits
IS Power
for I/O Circuits
IS Power
for I/O Circuits
FLEX Ex I/O
FLEX Ex Power Supply
(1797-PS1N, -PS1E, -PS2N, or -PS2E)
Explosion-proof Enclosure
15-34
Distributed I/O
1797 FLEX Ex Intrinsically Safe I/O
Communication
A FLEX Ex I/O adapter module (1797-ACNR15) provides an
interface for communication between the I/O modules and a
scanner port for a programmable controller processor across
an I/O link. It is capable of redundant media operation. The
FLEX Ex I/O adapter module interfaces with the modular
backplane made up of terminal bases to communicate with
the I/O modules. The adapter port interfaces to a coax
ControlNet Ex segment in the hazardous area. The coax
ControlNet Ex segment within the hazardous area, in turn, is
interfaced thru a repeater adapter module (1797-RPA) and
fiber repeater module (1797-RPFM) to a fiber-optic
ControlNet Ex segment which can cross the boundary
between the hazardous area and the safe area. In the safe
area, the fiber-optic segment is interfaced to a coax
ControlNet segment to provide a path for communication with
a scanner port for a programmable controller processor.
Ordering Information
Product
Function
Catalog Number
I/O Adapter Module
Interfaces FLEX Ex I/O modules to a coax segment of a ControlNet Ex I/O link
1797-ACNR15
ControlNet Repeater Adapter Module
Interfaces a coax segment to a fiber module in a hazardous location
1797-RPA
ControlNet Fiber-optic Port Module
Interfaces a fiber-optic segment to a repeater adapter module in a hazardous location.
1797-RPFM
ControlNet Ex Straight T-Tap
Straight T-tap for a ControlNet Ex coax segment in a hazardous location.
1797-TPS
ControlNet Ex Right Angle T-Tap
Right Angle T-tap for a ControlNet Ex coax segment in a hazardous location.
1797-TPR
ControlNet Ex Straight Y-Tap
Straight Y-tap for a ControlNet Ex coax segment in a hazardous location.
1797-TPYS
ControlNet Ex Right Angle Y-Tap
Right angle Y-tap for a ControlNet Ex coax segment in a hazardous location.
1797-TPYR
Terminator (quantity, 50)
A 75
W terminator for a ControlNet Ex coax segment in a hazardous location.
1797-XT
Terminator (quantity, 5)
A capacitor terminator for a ControlNet Ex coax tap in a hazardous location.
1797-TCAP
Extender Cable, 0.3m (1 ft)
Connects between 2 rows of FLEX Ex I/O modules.
1794-CE1
Extender Cable, 0.9m (3 ft)
Connects between 2 rows of FLEX Ex I/O modules.
1794-CE3
Extender Cable, 0.3m (1 ft)
Connects a bus isolator to a feed-thru connector.
1797-CE1S
Extender Cable, 0.9m (3 ft)
Connects a bus isolator to a feed-thru connector.
1797-CE3S
Bus Isolator Module
Isolates a backplane in a safe area from a backplane in a hazardous area.
1797-BIC
Bus Isolator Connector
Connects the bus isolator modules to a backplane in a safe area.
1797-CEC
Feed-thru Connector.
Connects extender cables thru the wall of an explosion-proof enclosure.
1797-CEFTE
Feed-thru Connector.
Connects extender cables thru the wall of an explosion-proof enclosure.
1797-CEFTN
I/O Modules
Interface sensors/actuators with the I/O adapter module across the backplane in a hazardous location.
See page 15-35.
Terminal Bases
Make up a modular backplane and provide terminal connection points for I/O wiring in a hazardous location.
See page 15-37.
Power Supplies
Converts 24V dc unsafe power to IS power for the I/O adapter and I/O modules in a hazardous location.
See page 15-38.
ControlNet Ex BNC Boot
(quantity, 50)
Boots to insulate ControlNet BNC connectors in the hazardous location.
1797-BOOT
ControlNet Ex Insulator Set
A set of 5 different types of ControlNet insulators (including a BNC boot) for a hazardous location.
(Replacement parts.)
1797-INS
FLEX Ex Cable Marking Kit
Used to tag the ControlNet cable in the hazardous area as carrying IS signals.
1797-EXMK
ControlNet Ex RG-6 Coaxial Cable
Serves as ControlNet Ex trunk cable.
1797-RG6
Note: Despite similarities in appearance, the 1797 modules
are not compatible for use with the 1794 terminal bases, and
the 1797 terminal bases are not compatible for use with the
1794 I/O modules.
Class I Div 1 Hazardous
15-35
Distributed I/O
1797 FLEX Ex Intrinsically Safe I/O
Specifications for FLEX Ex I/O Modules and I/O Communication Modules
1797-ACNR15
1797-RPA
1797-RPFM
1797-BIC
1797-CEC
I/O Modules
Dimensions (HxWxD)
86 x 94 x 91 mm
(3.4 x 3.7 x 3.6 in)
86 x 94 x 91 mm
(3.4 x 3.7 x 3.6 in)
94 x 94 x 91 mm
(3.7 x 3.7 x 3.6 in)
86 x 94 x 91 mm
(3.4 x 3.7 x 3.6 in)
80 x 55 x 69 mm
(3.2 x 2.2 x 2.7 in)
46 x 94 x 75 mm
(1.8 x 3.7 x 3.0 in)
Weight
0.4 kg (0.8 lb)
0.3 kg (0.7 lb)
0.14 kg (0.3 lb)
???
0.1 kg (0.2 lb)
0.1 kg (0.3 lb)
Input/Output Agency Certification
CENELEC:
UL, cUL:
FM, CSA:
EEx ib IIB/IIC
AEx ib IIC, Class I, II, III Division 1&2 Group A-D
Pending
Module Agency Certification
CENELEC:
UL, cUL:
FM, CSA:
EEx ib IIB/IIC T4
AEx ib IIC T4, Class I Division 1 & 2 Group A-D T4
Pending
Shock
Operating:
Non-operating:
15g peak acceleration, 11 (
±1) ms pulse width
15g peak acceleration, 11 (
±1) ms pulse width
Vibration
Tested 2g @ 10-500Hz per IEC 68-2-6
Conformal Coating
Tested and meets ISA-571.04-1995 for noxious gases, severity level 3
1797 I/O Communication Module Selection
Catalog Number/
Module
Function
Communication
Interface
Communication Rates
Supported
Power
Consumption
1797-ACNR15
I/O Adapter Module
Interfaces FLEX Ex I/O modules to a coax segment of a
ControlNet Ex I/O link with redundant media operation
Quad-shield RG-6 coax
(ControlNet Ex link)
5M bit/s
8.5W
1797-RPA
ControlNet Repeater
Adapter Module
Interfaces a coax segment of a ControlNet Ex link to one or
two fiber-optic port modules in a hazardous location
Quad-shield RG-6 coax
(ControlNet Ex link)
5M bit/s
8.5W
1797-RPFM
Fiber-optic Port Module
Interfaces a ControlNet Ex fiber-optic segment to a repeater
adapter module in a hazardous location.
62.5/125-micron fiber
(ControlNet Ex link)
5M bit/s
None
1797 FLEX Ex I/O Modules
1797 Digital dc Input Module Selection
Type
Voltage
Category
Signal
Delay
Max
Off-State
Current
Number
of
Inputs
Module
Cat. No.
1797-
TB
Cat. No.
1797-
Power
Consumption
/Dissipation
Applications
dc
NAMUR-compatible
sink (source load)
1ms
1
1.2mA
16
IBN16
TB3, TB3S
2.8W/2.9W
General-purpose IS dc inputs including
NAMUR proximity sensors
1
On/off = 1ms default. Programmable to 1ms, 2ms, 3ms, 5ms, 9ms, 17ms, or 33ms.
1797 Digital dc Output Module Selection
Type
Voltage
Category
Max Contin-
uous Current
Per Output
Max Continuous
Current Per
Module
Number of
Outputs
Module
Cat. No.
1797-
TB
Cat. No.
1797-
Power
Consumption
/Dissipation
Applications
dc
24 source
45mA
1
180mA
4
OB4D
TB3, TB3S
7.5W/5W
General-purpose IS 24V dc outputs
1
See the graph.
24V
11V
45mA
0mA
15-36
Distributed I/O
1797 FLEX Ex I/O Modules
1797 Analog I/O Module Selection
Number of
Inputs/
Outputs
Voltage Range
Current Range
Data
Format
Module
Cat. No.
1797-
TB
Cat. No.
1797-
Power
Consumption
/Dissipation
Step
Response
@ 99%
Channel Update/
Resolution/
Accuracy
8 single-ended
inputs
not applicable
user configurable
•4 thru 20mA
•0 thru 20 mA
Natural
binary
IE8
TB3,
TB3S
7.5W/5.2W
4ms
4ms/8 channels.
16-bit resolution.
0.1% FS @ 20
°C.
8 single-ended
inputs with
augmented
noise filter
not applicable
user configurable
•4 thru 20mA
•0 thru 20 mA
Natural
binary
IE8NF
TB3,
TB3S
7.5W/5.2W
500ms
4ms/8 channels.
16-bit resolution.
0.1% FS @ 20
°C.
8 single-ended
thermocouple
or RTD inputs
(2 sets of 4)
RTD sensors supported:
•100W Pt, Eur (385) (–200 to +870°C)
•100W Pt, U.S. (3916) (–200 to +630°C)
•200W Pt, Eur (385) (–200 to +400°C)
•200W Pt, U.S. (3916) (–200 to +400°C)
•100W Nickel (–60 to +250°C)
•120W Nickel (–80 to 320°C)
•200W Nickel (–60 to +200°C)
•10W Copper (–200 to 260°C)
Thermocouples supported:
•Type B: 300 to 1800°C (572 to 3272°F)
•Type E: –250 to 1000°C (–418 to 1832°F)
•Type J: –210 to 1200°C (–346 to 2192°F)
•Type K: –250 to 1372°C (–418 to 2502°F)
•Type TXK/XK (L): –200 to 800°C (–328 to
1472
°F)
•Type N: –250 to 1300°C (–418 to 2372°F)
•Type R: –0 to 1768°C (–32 to 3214°F)
•Type S: –0 to 1768°C (–32 to 3214°F)
•Type T: –250 to 400°C (–418 to 752°F)
Natural
binary
IRT8
TB3,
TB3S
1.6W/1.6W
8ms (mV
mode,
°F
thermo-
couple)
4ms/8 channels.
16-bit resolution.
0.1% of FS.
8 single-
ended
outputs
15.5V dc source
in digital mode
1
user configurable
•4 thru 20mA
•0 thru 20mA
•45mA digital mode
1
Natural
binary
OE8
TB3,
TB3S
6.3W/5.4W
4ms
4ms/4 channels.
13-bit resolution.
0.1% FS @ 20
°C.
1
An output configured for a digital mode. In that case the
maximum continuous current per output relative to the
output voltage is illustrated in this graph.
15.5V
11V
22mA
0mA
1797 Intelligent I/O Module Selection
Catalog Number/ Module
Inputs
Outputs
Power
Consumption
/Dissipation
TB Cat. No.
1797-
1797-IJ2
Frequency Input Module
A set of 2 digital NAMUR inputs for each of 2
frequency counter channels.
A digital output (a set of form-C contacts) for
each of 2 frequency counter channels.
4.25W/4.25W
TB3, TB3S
Description — The frequency input module is an intelligent I/O module that has 2 frequency counter channels able to count input
frequencies of 32,767Hz maximum. Each frequency counter channel has a frequency input, a gate input and a contact (form-C)
output. The module is capable of accepting inputs from vortex, magnetic pickup, hard contact, and NAMUR proximity sensing
devices. The frequency value and other status information is-transferred to the processor. Configuration information, including
programming of the outputs is transferred to the module. For each channel, the output is configurable as a function of the input
frequency of the channel.
Class I Div 1 Hazardous
15-37
Distributed I/O
1797 FLEX Ex Terminal Bases and Extender Cables
I/O Adapter on DIN rail
1797 Terminal Base
1797 I/O Module
Terminal bases make up a modular backplane for FLEX Ex
I/O modules and make up a modular terminal block for I/O
connections. Each terminal base provides backplane
connections between the I/O adapter module and I/O
modules. Each also provides terminal connection points for
an I/O module.
• For each I/O module (8 maximum) snap a terminal base
onto the DIN rail to the right of adapter.
• Plug each I/O module into its terminal base.
• Wire sensors/actuators directly to the terminal base.
• No space wasted for unused I/O module slots. You only
add the number of terminal bases needed for the number
of I/O modules.
• No space wasted for separate terminal blocks. FLEX Ex
I/O terminal bases provide all the screw or spring
terminals you need for two-wire or three-wire
sensors/actuators in the same compact space.
• You can mount the terminal bases in horizontal or vertical
rows.
• Alternatively, you can arrange your modular FLEX Ex I/O
assembly in two rows. Use an extender cable (1 ft or 3 ft)
to connect the two rows.
FLEX Ex I/O
FLEX Ex I/O
1794-CE1 1-ft or
1794-CE3 3-ft
extender cable
(I/O Adapter)
Specifications
Shock
Operating:
Non-operating:
15g peak acceleration, 11 (
±1) ms pulse width
15g peak acceleration, 11 (
±1) ms pulse width
Vibration
Tested 2g @ 10-500Hz per IEC 68-2-6
Terminal Screw Torque
.79-1.02 N-m (7-9 pound-inch)
Agency Certification
CENELEC:
UL, cUL:
II 2G EEx ia IIC T4
Class I Zone 1&2 AEx ia IIC T4
Class I Division 1&2 Group A-D T4
1797-Series Terminal Bases and Extender Cables Selection
Number of
Terminals
Wire Clamping
Type
Special Features
Catalog
Number
Weight
kg (lb)
Dimensions
(HxWxD)
53
Screw
None
1797-TB3
0 2 (0 5)
94 x 94 x 69 mm
(3.7 x 3.7 x 2.7 in)
53
Spring
None
1797-TB3S
0.2 (0.5)
(3.7 x 3.7 x 2.7 in)
with module installed
in base
This extender cable lets you arrange your modular FLEX Ex I/O assembly in two rows. You can mount the
ith
h i
t ll
ti ll
1794-CE1
0.1 (0.2)
0.3m (1 ft)
y
g y
y
rows either horizontally or vertically.
1794-CE3
0.1 (0.2)
0.9m (3 ft)
Class I Div 1 Hazardous
15-38
Distributed I/O
1797 FLEX Ex Power Supplies
The intrinsically safe power supplies convert unsafe 24V dc
power into intrinsically safe power in a hazardous location.
The power supplies are built into explosion-proof housings.
The north American version of the power supply
(1797-PS2N) has threaded ports for bringing the unsafe
power wiring in from the safe area thru conduits. The
European version of the power supply (1797-PS2E) has a
flame-proof housing for bringing the unsafe power wiring in
from the safe area thru a compression seal.
You must use one of these intrinsically safe power supplies
to power the I/O adapter module, the I/O modules, and the IS
fiber hub. The intrinsically safe power supply has 4 power
outputs, each capable of supplying 8.5W maximum. The
output power is galvanically isolated from the source. Each
channel is independently intrinsically safe limited.
Specifications
Catalog No.
1797-PS1N
1797-PS1E
1797-PS2N
1797-PS2E
Input Voltage
120/220 (85-264)V ac
24 (19-32)V dc, 5% ripple
Input Power Entrance
1-in NPT
1
Increased safety
1-in NPT
1
Increased safety
Max Output Power
8.5W each at 4 outputs
Input Power Consumption
55W
Power Dissipation
21W
Conductor Size
12 AWG (4 mm
2
) stranded max
1.2 mm (3/64 in) insulation max
Use wire rated for 100
° C operation
Dimensions (H x W x D)
in mm (in)
174 x 174 x 128
(6.9 x 6.9 x 5.04)
174 x 174 x280
(6.9 x 6.9 x 11.0)
174 x 174 x 128
(6.9 x 6.9 x 5.04)
174 x 174 x280
(6.9 x 6.9 x 11.0)
Protection Class
IP66/NEMA 7B
IP 65/NEMA 7B
IP66/NEMA 7B
IP 65/NEMA 7B
Weight
7.3 kg (16 lb)
7.7 kg (17 lb)
7.3 kg (16 lb)
7.7 kg (17 lb)
Operating Temperature
–20 to 70
° C (4 to 158° F)
Storage Temperature
–40 to 85
° C (–40 to 185° F)
Relative Humidity
5 to 95% (without condensation)
Shock Operating:
Non-Operating:
Tested 15g peak acceleration, 11 (
±1)ms pulse width
Tested 15g peak acceleration, 11 (
±1)ms pulse width
Vibration
Tested 2g @ 10-500Hz per IEC 68-2-6
Agency Certification
CENELEC
not applicable
EEx de [ib] IIC T4
not applicable
EEx de [ib] IIC T4
Agency Certification
UL, cUL
Class I Div 1 Groups C-D
T4,
Class I Div 2 Groups A-D
T4
not applicable
Class I Div 1 Groups C-D
T4,
Class I Div 2 Groups A-D
T4
not applicable
Agency Certification
FM, CSA
Pending
Pending
Pending
Pending
1
After the conductors are routed thru the conduit, a seal must be formed at the power supply port
15-39
Distributed I/O
1798 FlexArmor I/O
Advantages
FlexArmor
t I/O products provide a hardened compact
modular I/O assembly that is flexible in its physical
configuration.
• Sealed housing rated for IP67 and NEMA 4X and 6PE
eliminate enclosure costs.
• Modularity of I/O and network connectivity.
• Compact design of hardware lets it fit directly onto the
machine.
• Locating I/O near sensors and actuators reduces wiring
costs and complexity.
• Low installation cost and easy to replace without rewiring,
because industry-standard quick-disconnect connectors
are used for connection to the network, the output-circuit
power supply, and each sensor or actuator.
• Removal and insertion under backplane power of any I/O
module without disruption of any other modules in the
system makes it possible to replace a failed module while
keeping the rest of the system running.
Functional Design
FlexArmor I/O modules offer 4 or 8 I/O each. You can plug
together a maximum of 8 I/O modules into a FlexArmor I/O
assembly, for a maximum of 64 I/O per assembly. The I/O
modules are interfaced to the network thru an I/O adapter
module with a built-in 24V-dc-input power supply. The I/O
modules receive 5V-dc logic power, 24V-dc input circuit
(sensor) power, and 24V-dc output circuit power thru the
backplane.
Mechanical Design
The FlexArmor I/O assembly is hardened and modular. I/O
circuitry is packaged in I/O modules. The I/O modules of an
assembly plug into a common base plate. Base plates are
available in sizes of 2, 4, 6, and 8 I/O module slots. You plug
an I/O adapter module and a field termination plug into the
left two slots of the base plate. The base plate holds the
modules in place and provides the backplane for the
assembly.
I/O Adapter
Module
31152
1798 Base Plate
1798 I/O Module
Field
Termination
Plug
The FlexArmor I/O assembly is designed for back-panel or
machine mounting. Modules can be mounted vertically or
horizontally. Enclosure costs are eliminated because each
module is packaged in a sealed housing rated for IP67 and
NEMA 4X and 6P.
To maintain the environmental ratings, all slots on the base
plate must be filled. If you don’t install enough I/O modules
to fill all the slots, you must install a dummy module
(1798-N2) into each I/O module slot not filled by an I/O
module.
Communication
A FlexArmor I/O adapter module provides an interface for
communication between the I/O modules and a scanner port
across a network link. Each FlexArmor I/O adapter module
communicates with the I/O modules across the base-plate
backplane. Each I/O adapter module also has a port that
communicates with a master port across a network I/O link.
General Specifications
Housing Rating
•IP67
•NEMA 4X and 6P
Operating Temperature
–20 to 60
° C (–13 to 140° F)
Storage Temperature
–40 to 85
° C (–40 to 185° F)
Shock: Operating
Non-operating
30g peak acceleration, 11 (
±1) ms pulse width
50g peak acceleration, 11 (
±1) ms pulse width
Vibration
Tested 5g @ 10-500Hz per IEC 68-2-6
Weight
1798-ADN:
0.1 kg (0.3 lb)
1798-APB:
0.1 kg (0.3 lb)
1798-DFTP1:
0.2 kg (0.4 lb)
1798-DFTP2:
0.2 kg (0.4 lb)
1798-PFTP1:
0.2 kg (0.4 lb)
1798-BP2:
0.4 kg (0.8 lb)
1798-BP4:
0.6 kg (1.2 lb)
1798-BP6:
0.7 kg (1.6 lb)
1798-BP8:
0.9 kg (2.0 lb)
1798 I/O Modules:
0.1 kg (0.3 lb)
Power supply built into
the 1798-ADN
Current load on 24V dc source:
400mA
Maximum backplane output current: 640mA
Power supply built into
the 1798-APB
Current load on 24V dc source:
400mA
Maximum backplane output current: 640mA
15-40
Distributed I/O
1798 FlexArmor I/O
Ordering Information
Product
Function
Catalog Number
DeviceNet I/O Adapter Module
Interfaces I/O modules to the DeviceNet link and converts 24V dc input circuit (sensor) power to 5V dc
backplane power. This I/O adapter is addressed as a DeviceNet node.
1798-ADN
PROFIBUS I/O Adapter
Module
Interfaces I/O modules to the PROFIBUS link and converts 24V dc input circuit (sensor) power to 5V dc
backplane power. This I/O adapter is addressed as a PROFIBUS node.
1798-APB
Field Termination Plug
Mounts onto the base plate to provide a pair of receptacles (one male, one female) for 12mm DeviceNet
cable plugs and a receptacle for a cable for providing 2 separate 24V dc power sources. One power
source is for the output circuits. The other power source is for the input circuits (sensors) and for the
adapter power supply to convert into 5V dc backplane power.
1798-DFTP1
Mounts onto the base plate to provide a pair of receptacles (one male, one female) for 18mm DeviceNet
cable plugs and a receptacle for a cable for providing 2 separate 24V dc power sources. One power
source is for the output circuits. The other power source is for the input circuits (sensors) and for the
adapter power supply to convert into 5V dc backplane power.
1798-DFTP2
Mounts onto the base plate to provide a pair of receptacles (one male, one female) for PROFIBUS cable
plugs and a receptacle for a cable for providing 2 separate 24V dc power sources. One power source is
for the output circuits. The other power source is for the input circuits (sensors) and for the adapter power
supply to convert into 5V dc backplane power.
1798-PFTP1
Base Plate
Provides mounting slots for 2 I/O modules, an I/O adapter module, and a field termination plug. The
base plate holds the modules in place and provides the backplane for the assembly. The backplane
includes the 5V dc backplane power bus, the 24V dc input circuit (sensor) power bus, and the 24V dc
output circuit power bus. Dimension (HxWxD) with modules: 121x165x66 mm (4.75x6.5x2.6 in).
1798-BP2
Provides mounting slots for 4 I/O modules, an I/O adapter module, and a field termination plug. The
base plate holds the modules in place and provides the backplane for the assembly. The backplane
includes the 5V dc backplane power bus, the 24V dc input circuit (sensor) power bus, and the 24V dc
output circuit power bus. Dimension (HxWxD) with modules: 121x247x66 mm (4.75x9.7x2.6 in).
1798-BP4
Provides mounting slots for 6 I/O modules, an I/O adapter module, and a field termination plug. The
base plate holds the modules in place and provides the backplane for the assembly. The backplane
includes the 5V dc backplane power bus, the 24V dc input circuit (sensor) power bus, and the 24V dc
output circuit power bus. Dimension (HxWxD) with modules: 121x329x66 mm (4.75x12.9x2.6 in).
1798-BP6
Provides mounting slots for 8 I/O modules, an I/O adapter module, and a field termination plug. The
base plate holds the modules in place and provides the backplane for the assembly. The backplane
includes the 5V dc backplane power bus, the 24V dc input circuit (sensor) power bus, and the 24V dc
output circuit power bus. Dimension (HxWxD) with modules: 121x411x66 mm (4.75x16.1x2.6 in).
1798-BP8
I/O Modules
Converts input circuit signals to the backplane level and converts backplane signals to output circuit level.
Dummy Module
Provides a covering for an I/O module slot that is not filled with an I/O module to keep the assembly
sealed.
1798-N2
1798 Digital dc Input Module Selection
Type
Voltage
Category
Operating
Voltage
Signal
Delay
Max
Off-State
Current
Number
of
Inputs
Module
Cat. No.
1798-
Backplane
Current
Load
Applications
dc
24
sink
(
10-28.8
512
ms
1
1.5mA
4
(1 set of 4)
IB4
20mA
General-purpose 24V dc inputs including proximity
sensors (1 input per connector)
(source
load)
512
ms
1
1.5mA
8
(1 set of 8)
IB8
20mA
General-purpose 24V dc inputs including proximity
sensors (2 inputs per connector)
1
On/off = 512
ms default. Programmable to 512ms, 1ms, 2ms, 4ms, 8ms, 16ms, 32ms, or 64ms.
1798 Digital dc Output Module Selection
Type
Voltage
Category
Operating
Voltage
Max Contin-
uous Current
Per Output
Max Continuous
Current Per
Module
Number
of
Outputs
Module
Cat. No.
1798-
Backplane
Current
Load
Applications
dc
24
source
10-28.8
1A
4A
4
(1 set of 4)
OB4E
60mA
24V dc outputs with electronic fusing
(1 output per connector)
dc
24
source
10-28.8
1A
5A
8
(1 set of 8)
OB8E
60mA
24V dc outputs with electronic fusing
(2 outputs per connector)
Document Outline
- Rockwell Automation Catalogs on CD
- Table of Contents
- Foreword
- 1 - General
- 2 - Control Systems Overview
- 3 - Pico 1760 Controller
- 4 - MicroLogix 1000 / 1761 System
- 5 - MicroLogix 1200 / 1762 System
- 6 - MicroLogix 1500 / 1769 System
- 7 - SLC / 1746 System
- 8 - PLC-5 / 1771 System
- 9 - Logix Overview
- 10 - CompactLogix / 1769 System
- 11 - FlexLogix / 1794 System
- 12 - ControlLogix / 1756 System
- 13 - SoftLogix5800 System
- 14 - OpenAutomation System & Industrial Computer Products
- 15 - Distributed I/O
- Overview
- 1790 CompactBlock LDX, 1791D CompactBlock I/O Blocks
- 1791 Standard I/O Blocks
- 1792 ArmorBlock I/O Blocks
- 1734 POINT I/O Modules
- 1793 FLEX Integra and 1794 FLEX I/O
- 1794 I/O Adapter Modules for FLEX Integra and FLEX I/O
- 1793 FLEX Integra I/O Modules
- 1794 FLEX I/O Modules
- FLEX I/O Communication Modules
- 1794 FLEX I/O Terminal Bases and Extender Cables
- 1794 FLEX I/O Power Supplies
- 1794 Power Requirements and Transformer Sizing
- 1797 FLEX Ex Intrinsically Safe I/O
- 1797 FLEX Ex I/O Modules
- 1797 FLEX Ex Terminal Bases and Extender Cables
- 1797 FLEX Ex Power Supplies
- 1798 FlexArmor I/O
- 16 - Process Control
- 17 - Application Solutions
- 18 - Communication
- 19 - Operator Interface
- 20 - Wiring Systems (1492) & Cable Connection Configurations
- 21 - Support
- 22 - Determining Power Dissipation
- Trademark Information
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