1MRS752012-MEN
Issued:
15.03.2002
Version:
A
Program revision: 4.0
We reserve the right to change data without prior notice.
Configuring MicroSCADA for
IEC 60870-5-103 Master Protocol
Configuration Guide
COM 500
Notice 1
The information in this document is subject to change without notice and should not
be construed as a commitment by ABB. ABB assumes no responsibility for any error
that may occur in this document.
Notice 2
This document complies with the program revision 4.0.
Notice 3
Additional information such as Release Notes and Last Minute Remarks can be
found on the program distribution media.
Trademarks
Microsoft is a registered trademark of Microsoft Corporation.
Windows NT is a trademark of Microsoft Corporation.
L
ON
W
ORKS
is a registered trademark of Echelon Corporation.
Other brand or product names are trademarks or registered trademarks of their respective holders.
All Microsoft products referenced in this document are either trademarks or registered trademarks of Microsoft
Corporation.
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Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
COM 500
Configuration Guide
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Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
Configuration Guide
1MRS752012-MEN
COM 500
Contents
Configuration Guide
Contents:
1. Introduction ...............................................................................9
2. Safety information ...................................................................11
3. Instructions ..............................................................................13
3.2.1. Base system configuration ...............................................14
3.2.2. Communication system configuration ..............................16
3.3. After configuration .......................................................................37
3.4. How to test the configuration .......................................................38
3.5. Serial cable wiring diagram .........................................................38
4. Technical description .............................................................39
4.2. Communication ...........................................................................44
4.2.1. Protocol converter ............................................................44
4.2.2. Addressing .......................................................................45
4.2.3. Device communication attributes .....................................46
4.2.4. Data in monitoring direction .............................................48
4.2.5. Disturbance and generic data ..........................................50
4.2.6. Data in control direction ...................................................50
4.2.7. Transparent data commands ...........................................52
4.3. Status codes ...............................................................................54
5. Interoperability list ..................................................................59
5.3.1. Selection of standard information numbers in monitor
5.3.2. Selection of standard information numbers in control
5.3.3. Basic application functions ...............................................64
5.3.4. Miscellaneous ..................................................................64
1MRS752012-MEN
Configuring MicroSCADA for
IEC 60870-5-103 Master Protocol
1MRS752012-MEN
COM 500
9
Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
Configuration Guide
1. Introduction
1
1. Introduction
Using this manual
This manual should be read when you want to use the IEC 60870-5-103 master
protocol and need information related to it. It describes how to configure the base
system and the communication system to establish communication to an IEC 60870-
5-103 slave.
In addition to this configuration, the base system needs to be configured for other
communication tasks, e.g. process communication, if needed. For information about
this subject, refer to other manuals, e.g. Application Objects and System Objects.
Referenced manuals
The following MicroSCADA manuals should be available for reference during the
use of this manual:
• System Configuration manual
• System Objects manual
• Application Objects manual
Other referenced manuals
The IEC 60870-5-103 protocol is based on the following documents by the IEC
Technical Committee 57:
• IEC 60870-5-1
Transmission Frame Formats
• IEC 60870-5-2
Data Link Transmission Services
• IEC 60870-5-3
General Structure of Application Data
• IEC 60870-5-4
Definition and Coding of Information Elements
• IEC 60870-5-5
Basic Application Functions
• IEC 60870-5-103
Companion standard for the IEC 60870-5-103 protocol
IEC 60870-5-103 Master Protocol
The IEC 60870-5-103 master protocol is mainly used for process level
communication between SYS 500 and process units as presented in (see Fig. 1.-1).
1MRS752012-MEN
10
1MRS752012-MEN
Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
COM 500
1. Introduction
Configuration Guide
)LJ 7KH,(&PDVWHUVHHVWKH6XEVWDWLRQ&RQWURO6\VWHP6&6DVDQ,(&VODYH
1MRS752012-MEN
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11
Configuring MicroSCADA for
IEC 60870-5-103 Master Protocol
Configuration Guide
2. Safety information
2. Safety
information
This chapter gives information about the prevention of hazards.
2.1.
Backup copies
We suggest that you take backup copies before making any changes, especially the
ones that might have side effects. Software and data need to be copied to another
place, usually to a CD or a backup tape. A writable CD and DAT tape are commonly
used.
Backup copying makes it easier to restore application software in case of a disk crash
or any other serious failure when stored data is lost. It is therefore recommended that
backup copies are taken regularly.
There should be at least two system backup copies and two application copies. A
new backup is copied over the oldest backup. This way the latest version is always
available, even if the backup procedure fails.
Detailed information on how to take backup copies should be delivered to the
customer with the application.
System backup
Usually a system backup is taken after the application is made. A backup should be
taken again when changes are made to the MicroSCADA system. For example, if
the driver configuration or the network set-up is changed.
Application backup
An application backup is also taken at the same time with system backup, after the
application is made. A backup should be taken again when changes are made to the
application. For example, if pictures or databases are edited or new pictures are
added.
2.2.
Fatal errors
A fatal error is an error that causes a break-down or a locked situation in the
MicroSCADA program execution.
Handling
In case of a fatal error:
Write down the possible MicroSCADA error messages.
Shut down the MicroSCADA main program. If this cannot be done in the
MicroSCADA Control Panel, try to end the task in Windows NT™
1
Task
Manager.
1. Windows NT is a trademark of Microsoft Corporation.
1MRS752012-MEN
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1MRS752012-MEN
Configuring MicroSCADA for
IEC 60870-5-103 Master Protocol
COM 500
2. Safety information
Configuration Guide
Shutting down the base system computers by switching off the power might damage
the files.
In Windows NT, the data kept in the main memory at the moment of a fatal error
is placed in the drwtsn32.log file. It is placed in a system folder, for example
Winnt. Analyse and copy the data in this file.
Restart the system.
Report the program break-down together with the possible MicroSCADA error
messages and the information from the drwtsn32.log file to the MicroSCADA
supplier.
Status codes
Error messages in SCIL are called status codes. A list of status codes and short
explanations can be found in the Status Codes manual.
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Configuring MicroSCADA for IEC
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Configuration Guide
3. Instructions
3
3. Instructions
3.1.
General
Communication
In MicroSCADA the IEC 60870-5-103 master protocol is implemented in the PC-
NET software only. PC-NET communicates over an INTEGRATED link and via the
serial ports of the base system computer. Setting the attributes of the MicroSCADA
system objects can modify the communication parameters.
The base system sees each IEC master device as a station (STA object) which has
been created to a line of a NET unit. Each IEC station works as a protocol converter
that converts data between the internal protocol of MicroSCADA and the IEC
60870-5-103 protocol.
Requirements
The following software is required:
• MicroSCADA Software 8.4.2 or newer, see the revision information below
• Operating system - Windows NT
Revision information
The information given in this document is valid for MicroSCADA revision 8.4.4.
With the following limitations the information is valid in older revisions:
• The IEC 60870-5-103 master protocol was implemented in revision 8.4.2
• The SE and OS attributes, as well as synchronisation with configurable address
were implemented in revision 8.4.2 A
• The OM attribute was implemented in revision 8.4.4
• Dial-up and the CB attribute were implemented in revision 8.4.3
3.2.
Configuration
General
The configuration can be divided into two parts:
• Base system configuration
• Communication system configuration
Configuration can be made either by using the System Configuration Tool or by
using SCIL statements. The following sections show how to make the configuration
by using SCIL. For details about the System Configuration Tool, please refer to the
System Configuration manual.
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Configuring MicroSCADA for IEC
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COM 500
3. Instructions
Configuration Guide
3.2.1.
Base system configuration
General
Each base system has a set of objects that specify the base system and its
environment, hardware and software, as well as the physical and logical connections
of the base system and its applications.
The base system objects are defined with SCIL commands in the
SYS_BASCON.COM file, which is executed every time the base system is started.
With a few limitations, you can also define and modify the base system objects any
time when MicroSCADA is running. During the operation, the base system objects
are in the primary memory of the base system computer.
The IEC 60870-5-103 master protocol is implemented in the PC-NET software,
which means that an INTEGRATED link must be used. The IEC 60870-5-103
master protocol uses the station type (STY object) 29.
Configuration steps
To configure SYS_BASCON.COM:
Define the base system.
Define a link.
Define a node.
Define a monitor.
Define an application.
Define the station type.
Define the IEC stations.
The definitions are made in the example below by using the old
SYS_BASCON.COM template. If the new (revision 8.4.2 or later) template is used,
the INTEGRATED link and the node for the PC-NET will be created by the System
Configuration Tool and need not to be included in SYS_BASCON.COM. For more
information about the system objects, see the System Objects manual.
Example
The following is an example of the SYS_BASCON.COM file for communication
with the IEC 60870-5-103 master protocol. An application IEC_TEST is defined. In
this example two IEC 60870-5-103 master stations are configured.
It is important to map the cause of transmission value (3) as shown in the following
example, otherwise data with COT 3 does not update the process objects!
;***************************************************************************
;
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Configuring MicroSCADA for IEC
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Configuration Guide
3. Instructions
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; SYS_BASCON.COM
; BASE SYSTEM CONFIGURATION TEMPLATE
;
;***************************************************************************
#CREATE SYS:B = LIST(-
SA = 209,- ;STATION ADDRESS OF BASE SYSTEM
ND = 9,- ;NODE NUMBER OF BASE SYSTEM
DN = 3,- ;DEFAULT NET NODE NUMBER
DS = "RTU",- ;STA TYPES: E.G. STA,RTU,SPA,REX
FS = "NEVER")
;FILE SYNCH CRITERIA:
;NEVER,MAINT,SET,CHECKPOINT,ALWAYS
;***************************************************************************
;
; COMMUNICATION LINKS
#CREATE LIN:V = LIST(- ;REQUIRES THE PC-NET PROGRAM
LT = "INTEGRATED",-
SC = "\SC\PROG\PC_NET\PC_NETS.EXE") ;STARTUP COMMAND
#CREATE LIN3:B = %LIN
;***************************************************************************
;
; COMMUNICATION NODES
#CREATE NOD:V = LIST(-
LI = 3,-
SA = 203)
#CREATE NOD3:B = %NOD
;***************************************************************************
;
; PRINTERS
;***************************************************************************
;
; MONITORS
#LOOP_WITH I = 1..5
#CREATE MON’I’:B = LIST(-
TT = "LOCAL",- ;TRANSLATION TYPE
DT = "X") ;X MONITOR
@MON_MAP(%I) = -1
#LOOP_END
#LOOP_WITH I = 6..10
#CREATE MON’I’:B = LIST(-
TT = "LOCAL",- ;TRANSLATION TYPE
DT = "VS") ;VISUAL SCIL MONITOR
@MON_MAP(%I) = -1
#LOOP_END
;***************************************************************************
;
; APPLICATIONS
#CREATE APL:V = LIST(-
TT = "LOCAL",- ;TRANSLATION TYPE
NA = "IEC_TEST",- ;NAME OF APPLICATION DIRECTORY
AS = "HOT",- ;APPLICATION STATE: COLD,WARM,HOT
HB = 2000,- ;HISTORY BUFFER SIZE)
RC = VECTOR("FILE_FUNCTIONS_CREATE_DIRECTORIES"),-
AP = (1,2),-
MO = %MON_MAP,- ;MONITOR MAPPING
PR = (1,2,3)) ;PRINTER MAPPING
16
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Configuring MicroSCADA for IEC
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COM 500
3. Instructions
Configuration Guide
#CREATE APL1:B = %APL
;***************************************************************************
; STATION TYPES
#SET STY29:BCX = "IEC"
#SET STY29:BCT(3) = "UNKNOWN" ; MAPPING OF RESET FRAME COUNT BIT (FCB)
;***************************************************************************
; STATIONS
;*** NET 3 stations ***
#CREATE STA:V = LIST(-
TT = "EXTERNAL",-
ST = "IEC",-
ND = 3,-
TN = 1)
#CREATE STA1:B = %STA
#CREATE STA:V = LIST(-
TT = "EXTERNAL",-
ST = "IEC",-
ND = 3,-
TN = 2)
#CREATE STA2:B = %STA
;***************************************************************************
3.2.2.
Communication system configuration
General
Each NET unit contains a set of system objects, which specify line properties,
connected devices etc. These objects can be created, modified and deleted by SCIL,
and setting the attributes of the objects can change the properties.
Access to the attributes can be one of the following:
•
5HDGRQO\: The attribute can only be read. There are still a few exceptions in
which the values can be reset.
•
:ULWHRQO\: The attribute can only be written (set).
•
5HDGFRQGLWLRQDOZULWH: The attribute can be both read and written, but the
object must be set out of use (IU = 0) before writing.
•
1ROLPLWDWLRQV: The attribute can be both read and written without limitations.
The implementation of the IEC 60870-5-103 master protocol in MicroSCADA can
be divided into two layers: link layer and application layer. Both of these layers have
a specific functionality and a set of attributes of their own. The link layer
corresponds to a line of a NET unit and the application layer corresponds to a station
configured to the line.
The purpose of the communication system configuration is to:
• Create all the system objects needed to establish communication between the
master and the slave.
• Adjust the values of the system object attributes to match the physical
communication channel and the properties of the slave station.
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Configuring MicroSCADA for IEC
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Configuration Guide
3. Instructions
3
Setting the attribute values
All the line and station attributes have sensible default values but the value of each
attribute must be checked against the requirements of the actual communication
system. The attribute values depend on:
• The physical communication media (e.g. leased telephone line, radio link and
power line carrier). This affects particularly the attributes of the line, such as baud
rate and parity.
• The network topology used (point-to-point, multidrop). This affects, for example,
the link type.
• The size (number of stations) of the system. This affects especially the timeout
parameters; the slower the media and bigger the system, the longer timeouts are
needed.
• The master system. This affects both the line and station attributes, and also the
message types used.
When making the IEC connection, an agreement about the communication
parameters used should be made with the supplier or owner of the system acting as
the IEC slave.
Network topologies
The implementation of the IEC 60870-5-103 master protocol in MicroSCADA
supports direct and serial bus topologies. The direct topology (point-to-point) can be
a direct physical cable from point-to-point or a two-node radio or modem network.
The serial bus topology (multi-drop) is commonly made up of many modems with
their outputs and inputs tied together, or using a star-coupler.
The IEC 60870-5-103 protocol supports one master on a line. Figure 3.2.2.-1
illustrates the network topologies.
)LJ
1HWZRUNWRSRORJLHV
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1MRS752012-MEN
Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
COM 500
3. Instructions
Configuration Guide
Only the unbalanced mode of the IEC 60870-5-103 protocol is specified and can be
used.
IEC 60870-5-103 link layer
The line process of a NET unit performs the functions of the link layer. The purpose
of the link layer is to send and receive messages with external devices using the IEC
60870-5-103 protocol. The link layer provides also frame synchronisation and link
control.
According to the IEC 870 standards, the link layer performs the following
functions:
• Provides access to the transmission medium.
• Serialises and deserialises frames.
• Adds and removes frame delimiters if not performed by data circuit terminating
equipment.
• Detects frame synchronisation errors.
• Detects frame size errors.
• Monitors signal distortion if not performed by data circuit terminating equipment.
• Recognises frames addressed to a designated station.
• Prevents the station transmitting without a pause.
• Protects messages against loss and errors within predetermined limits.
• Reports on persistent transmission errors.
• Reports on the status of link configuration.
• Supports initiation and maintenance functions.
Link layer attributes
The following attributes can be used for configuring the IEC 60870-5-103 master
lines in MicroSCADA.
,8
,Q8VH
Indicates whether the line is in use (value 1) or not in use (value 0).
Data type:
Integer
Value:
0, 1
Index range:
1... 8 (NET line numbering)
Default value:
0
Access: No
limitations
32
3URWRFRO
The data transfer protocol used on the line. The line is defined to the NET by setting
this attribute. By setting the attribute to 0, the line definition including all the line
attributes will be deleted.
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Configuring MicroSCADA for IEC
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Configuration Guide
3. Instructions
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Data type:
Integer
Value:
0... 35
Value with IEC 60870-5-103 master protocol: 33
Index range:
1... 8 (NET line numbering)
Access: Read,
conditional
write
6'
6\VWHP'HYLFH1DPH
Associates the NET line numbers of PC-NET with the device names of the physical
channels of the serial ports.
By default, line number 1 is connected to COM1, line 2 to COM2 and so on. By
using the SD attribute it is possible to override these default values. This may be
necessary if COM ports will be used as NET lines or if, for example, a RocketPort
card is used.
Data type:
Text
Value:
See above
Index range:
1... 8 (NET line numbering)
Access: Read,
conditional
write
36%XIIHU3RRO6
L]H
Specifies the number of message buffers reserved for the line. Each buffer can
contain one message. The maximum data content length of a message is 228 bytes.
Data type:
Integer
Value:
1... 250
Index range:
1... 8 (NET line numbering)
Default value:
20
Access: Read,
conditional
write
The value of this attribute should be greater than the number of IEC stations
configured on the line.
%5
%DXG5DWH
Transmission rate used on the line.
Data type:
Integer
Value:
1... 19200
Unit:
Bits / s
Index range:
1... 8 (NET line numbering)
Default value:
19200
Access: Read,
conditional
write
20
1MRS752012-MEN
Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
COM 500
3. Instructions
Configuration Guide
3<
3DULW\
Specifies the parity check (if any) used for the characters transferred on the line.
Data type:
Integer
Value:
0 = no parity check
1 = odd parity
2 = even parity
Index range:
1... 8 (NET line numbering)
Default value:
2
Access:
Read, conditional write
20
2SHUDWLQJ0RGH
This attribute consists of a set of flags which controls the behaviour and
functionality of the IEC line. Each flag is one bit of this attribute. The bits are the
following:
Bit 1:
The polling method when the remote station sets the DFC bit on.
When this bit is 0, the master sends the ’request status of link’
until the remote station clears the DFC bit (this is the default
operation). When this bit is 1, the master continues polling
normally.
Bit 2:
One link, one station poll. When this bit is 1, the master infinitely
polls the first link which responds. Only the station from which
the first data is received is set to OK status and in case of a
communication failure, only this station is set to the suspended
state. This configuration is especially useful in a multistation
configuration with dial-up, in which the remote station makes
the call and there is only station behind the link. This bit should
be set only in the unbalanced mode.
When this bit is 0, all the links are polled normally (this is the
default operation).
Bits 3..15:
Not used, do not set
Data type:
Integer
Value:
0..65535
Index range:
1...8 (NET line numbering)
Default value:
0
Access:
Read, conditional write
5'
5HFHLYHU'DWD%LW&RXQW
Specifies the number of data bits in each received character.
Data type:
Integer
Value:
5, 6, 7 or 8
Unit:
Data bits
Index range:
1... 8 (NET line numbering)
Default value:
8
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Configuring MicroSCADA for IEC
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Configuration Guide
3. Instructions
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Access: Read,
conditional
write
6%
6WRS%LWV
Specifies the number of stop bits attached to each transmitted character.
Data type:
Integer
Value:
1 or 2
Unit:
Stop bits
Index range:
1... 8 (NET line numbering)
Default value:
1
Access: Read,
conditional
write
7'
7UDQVPLWWHU'DWD%LW&RXQW
Specifies the number of data bits in each transmitted character.
Data type:
Integer
Value:
5, 6, 7 or 8
Unit:
Data bits
Index range:
1... 8 (NET line numbering)
Default value:
8
Access: Read,
conditional
write
3'
3ROOLQJ'HOD\
Delay between polling messages. The purpose of this attribute depends on the
communication mode. The master sends the polling messages (for class 1 or class 2)
with an interval defined by this attribute.
Data type:
Integer
Value:
0... 65535
Unit:
Milliseconds
Index range:
1... 8 (NET line numbering)
Default value:
50
Access: Read,
conditional
write
33
3ROOLQJ3HULRG
The polling frequency of suspended stations. The attribute specifies how often
suspended stations on the line are polled.
Data type:
Integer
Value:
1...255
Unit:
Seconds
Index range:
1...8 (NET line numbering)
Default value:
10
Access: Read,
conditional
write
22
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Configuring MicroSCADA for IEC
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COM 500
3. Instructions
Configuration Guide
3/
3ROOLQJ/LPLW
This attribute is used for controlling the polling sequence of IEC stations. The
purpose of the PL attribute is to limit the number of successive polls of one station
(link address). Normally one station is polled until all the data is read.
Data type:
Integer
Value:
2... 100
Index range:
1... 8 (NET line numbering)
Default value:
10
Access:
Read, conditional write
53
5HSO\3ROOLQJ
This attribute specifies the number of successive polls to a station where the master
has sent a command.
Data type:
Integer
Value:
1... 20
Index range:
1... 8 (NET line numbering)
Default value:
1
Access:
Read, conditional write
6/
6HFRQGDU\SROOLQJ/LPLW
This attribute is used to control the class 2 polling of IEC stations. The purpose of
the SL attribute is to limit the number of successive class 2 polls of one station (link
address). If a value of zero is given, the attribute is meaningless and the value of PL
applies to class 2 polls also. The value of SL is limited to be less or equal to PL.
Value:
0 .. 100 (less or equal to PL)
Indexing:
1..8 (NET line numbering)
Access:
Read, conditional write
Default:
0
'(
&76'HOD\
Time delay (in milliseconds) between the activation of the RTS signal (Request to
Send) and the start of a new transmission.
Data type:
Integer
Value:
0... 65535
Unit:
Milliseconds
Index range:
1... 8 (NET line numbering)
Default value
50
Access:
Read, conditional write
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Configuring MicroSCADA for IEC
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3. Instructions
3
7:
7UDQVPLVVLRQ:DLW'HOD\
Specifies the transmission delay in milliseconds, i.e., the time that the NET must
wait after receiving a CTS (Clear to Send) signal until starting the transmission of a
message.
Data type:
Integer
Value:
0... 65535
Unit:
Milliseconds
Index range:
1... 8 (NET line numbering)
Default value:
0
Access: Read,
conditional
write
+7
+HDGHU7LPHRXW
Specifies the maximum waiting time in milliseconds within which the first byte of
a link layer response from the IEC slave should have been received after the
transmission of a message. If no response has been received within this time, new
attempts are performed the number of times specified by the Enquiry limit. If no
response is still obtained, the station will be suspended.
Data type:
Integer
Value:
0... 65535
Unit:
Milliseconds
Index range:
1... 8 (NET line numbering)
Default value:
2000
Access:
Read, conditional write
7,
5HVSRQVH7LPHRXW
The time in seconds that the IEC link waits for the end of the received message.
Data type:
Integer
Value:
0... 255
Unit:
Seconds
Index range:
1... 8 (NET line numbering)
Default value:
2
Access: No
limitations
5.
576.HHS8S3DGGLQJ&KDUDFWHUV
The number of padding characters (null characters) inserted to the end of the
telegram to delay the passivation of the RTS (Request To Send) signal.
Data type:
Integer
Value:
0... 255
Index range:
1... 8 (NET line numbering)
Default value:
0
Access: Read,
conditional
write
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3. Instructions
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5,
5HFHLYH,QWHUUXSW(QDEOH'HOD\
Defines the delay in milliseconds after which the receiver of a NET line is enabled
after a message has been issued.
Data type:
Integer
Value:
0... 255
0 = receiver enabled all the time
1… 9 = receiver enabled right after transmission
10… = receiver enabled as stated by the value
Unit:
Milliseconds
Index range:
1... 8 (NET line numbering)
Default value:
5 (unbalanced mode)
Access:
Read, conditional write
(1
(QTXLU\/LPLW
Specifies the maximum number of times that a message is retransmitted after a
timeout.
Data type:
Integer
Value:
1... 255
Index range:
1... 8 (NET line numbering)
Default value:
3
Access:
Read, conditional write
6*
0RGHP6LJQDO
An attribute for direct supervision and control of the state of the modem signal. The
attribute applies to all protocols. It is used for diagnostics and testing.
Data type:
Integer
Value:
0 = passive signal
1 = active signal
Index range:
100 * line no. + signal no. Signal no. 5 = CTS, 8 = DCD,
20 = DTR
Access: Read-only
0,
0HVVDJH,GHQWLILFDWLRQ
Object address of system messages.
Data type:
Integer
Value:
1... 32760
Index range:
1... 8 (NET line numbering)
Default value:
6000 + (100 * NET number) + line number
Access:
Read, conditional write
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Configuration Guide
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060HVVDJH$SSOLFDWLRQ
The number of the application that is the receiver of the system messages generated
by the line.
Data type:
Integer
Value:
1... 32
Default value:
1
Index range:
1... 8 (NET line numbering)
Access: Read,
conditional
write
([DPSOH
In the example of SYS_BASCON.COM earlier in this chapter, the number of the
message application is 1.
/.
/LQN7\SH
The type of data link connection used on the line. This attribute controls the
behaviour of the RTS-control line.
Data type:
Integer
Value:
4: Radio link
Index range:
1... 8 (NET line numbering)
Default value:
4
Access: Read,
conditional
write
&%
&DUULHU%ORFNLQJ
This attribute determines whether the Carrier Detect (DCC) signal of the serial port
must be set in order for the IEC station to receive messages. The DCD pin of the
serial port is used for this attribute.
Data type:
Integer
Value:
0 = Carrier blocking not used, Carrier Detect ignored
1 = Carrier blocking not used, Carrier Detect must be set
Default value:
1
Index range:
1... 8 (NET line numbering)
Access: Read,
conditional
write
'&
'LDJQRVWLF&RXQWHUV
The line protocols gather statistical information about the events on the lines by
incrementing a number of diagnostic counters. All the major events and error
situations of the communication have their own counters.
When accessing diagnostic counters, the attribute is indexed according to the
formula:
100 * (line number) + (diagnostic counter number)
The IEC 60870-5-103 master protocol supports the following counters:
1. Transmitted telegrams
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3. Instructions
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2. Failed transmissions
4. Transmitted commands
5. Transmitted replies
11. Received messages
12. Parity errors
13. Overrun errors
14. Check sum errors
15. Framing errors
16. Buffer overflow errors
Data type:
Integer
Value:
0... 30000
Index range:
See above
Access:
Read-only, the values can be reset
IEC 60870-5-103 application layer
The main purpose of the application layer is protocol conversion between IEC
60870-5-103 and the internal protocol of MicroSCADA. The application layer also
takes care of the application level communication with the slave.
The STA objects created in a NET unit perform the functions of the application
layer. Several STA objects of the IEC device type are allowed on the same line.
Some of the application layer attributes are used for configuration of the station,
others are used for device communication. The configuration attributes are
presented in this chapter and the communication attributes in the next one.
Application layer attributes
The following attributes can be used for configuring the IEC 60870-5-103 slave
stations in MicroSCADA.
,8
,Q8VH
Indicates whether the station is in use (value 1) or not in use (value 0).
Data type:
Integer
Value:
0 or 1
Default value:
0
Access:
No limitations
/,
/LQH1XPEHU
The number of the NET line the station is connected to.
Data type:
Integer
Value:
1... 8
Default value:
1
Access:
Read, conditional write
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Setting this attribute is not needed when the station is created by using the DV
attribute.
3$
3ROOLQJ$GGUHVV
The link address of the IEC 60870-5-103 master station.
Data type:
Integer
Value:
0... 254, when PL attribute = 1
NOTE! Address 255 is reserved for broadcast messages.
Default value:
1
Access:
Read, conditional write
6$
6WDWLRQ$GGUHVV
The station address of the IEC 60870-5-103 master station, the common address of
ASDU in an IEC message.
Data type:
Integer
Value:
0... 255
Default value:
1
Access:
Read, conditional write
'5
'LUHFWLRQ
States if the IEC master station acts as the station A (primary station) or station B
(secondary station).
Data type:
Integer
Value:
0 or 1
Default value:
1 (primary station)
Access:
Read, conditional write
3/
3ROOLQJ$GGUHVV/HQJWK
The length of the link address in octets.
Data type:
Integer
Value:
1 (the value should always be 1)
Default value:
1
Access:
Read, conditional write
6/
6WDWLRQ$GGUHVV/HQJWK
The length of the station address (common address of ASDU) in octets.
Data type:
Integer
Value:
1 (the value should always be 1)
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3. Instructions
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Default value:
1
Access:
Read, conditional write
,/
,QIRUPDWLRQ$GGUHVV/HQJWK
The length of the information object address in octets.
Data type:
Integer
Value:
2 (the value should always be 2)
Default value:
2
Access:
Read, conditional write
&/
/HQJWKRI&DXVHRI7UDQVPLVVLRQ,QIRUPDWLRQ
The length of the cause of transmission field in an IEC 60870-5-103 message in
octets.
Data type:
Integer
Value:
1 (the value should always be 1)
Default value:
1
Access:
Read, conditional write
$/
$OORFDWLRQ
Allocates the station to an application. When the AL attribute has the value 1, the
station is reserved by the application specified by the AS attribute. All the
spontaneous messages from the station will be sent to this application.
Data type:
Integer
Value:
0 or 1
Access:
No limitations
$6$OORFDWLQJ$SSOLFDWLRQ
Specifies the allocating application of the station (see the AL attribute). The
allocating application will get all the spontaneous process data from the station. This
application is also the only one that is allowed to set the device communication
attributes.
Data type:
Integer
Value:
0... 32
0 = no application
Access:
Read-only
When the AL attribute is set to 0, AS also gets the value 0.
0,
0HVVDJH,GHQWLILFDWLRQ
Object address of the system messages.
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Data type:
Integer
Value:
1... 32760
Default value:
29000 + station number
Access: Read,
conditional
write
060HVVDJH$SSOLFDWLRQ
The number of the application that is the receiver of the system messages generated
by the line.
Data type:
Integer
Value:
1... 32
Default value:
1
Access: Read,
conditional
write
([DPSOH
In the example of SYS_BASCON.COM earlier in this chapter, the number of the
message application is 1.
6(
6\VWHP0HVVDJHV(QDEOHG
Specifies whether the system messages generated by NET and related to the station
are sent to applications (value 1) or not (value 0). By using this attribute, it is
possible to disable the system messages related to the station.
Data type:
Integer
Value:
0 or 1
Default value:
1
Access: No
limitations
&$
&RPPDQG$GGUHVV
The object address of the bitstream process object in the MicroSCADA process
database, where unrecognised or private range (ASDUs 32-255) messages are sent.
Data type:
Integer
Value:
0… 65534
Default value:
32000
Access: Read,
conditional
write
The unit number (UN attribute) of the bit stream process object must be the same as
the STA object number of the IEC master station.
0/
0D[LPXP0HVVDJH/HQJWK
The maximum length of a transmitted message in octets.
Data type:
Integer
Value:
20…253
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3. Instructions
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Default value:
230
Access:
Read, conditional write
50
5XQQLQJ0RGH
Consists of a set of flags that control the behaviour and functionality of the IEC
master station. Each flag is one bit of this attribute. The bits are as follows (bits 1...
2 used by the IEC slave stations are left out):
Bit 0:
The hour transmission method of the events to the master. When this
bit is 0, the master gets the year and date from the slave as clock
synchronisation (ASDU 6,COT8). When this bit is 1, the master adds
the year, date and hour from its internal clock to the events. Minutes
and seconds should be provided in time-tagged events by the slave.
Bit 5:
Sending the general interrogation command when the master gets the
zero (OK) status. When this bit is 0, a general interrogation command
is always sent when the object status of the IEC master station gets the
value zero, e.g. when set in use or after a suspension. When this bit is
1, general interrogation is not sent automatically at zero status.
Data type:
Integer
Value:
1... 65534, see above
Default value:
33
Access:
Read, conditional write
([DPSOH
Disable general interrogation at zero status, RM value = 0*1+1*32=32.
'&
'LDJQRVWLF&RXQWHUV
The values of the diagnostic counters which the NET unit keeps for the station. The
counters have the following meaning:
1. Suspension information (0 = OK, 1 = suspended)
2. Suspension counter
3. Transmitted data messages
4. Transmitted command messages
5. Transmitted confirmation messages
6. Received data messages
7. Received command messages
8. Received confirmation messages
9. Received unknown messages
Data type:
Integer
Value:
1... 65535
Index range:
1... 20
Access: Read-only
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262EMHFW6
WDWXV
The current object status of the IEC slave station. When the value 1 is written to this
attribute, the slave station retransmits its current status code.
Data type:
Integer
Value:
0… 65535
Access:
Read-only, the values can be reset
67
6<6:DLWLQJ7LPH
The maximum time that the slave station waits for a reply from the base system.
Data type:
Integer
Value:
0... 60000
Unit:
Milliseconds
Default value:
5000
Access: No
limitations
57
$FWLYDWLRQ5HSO\7LPHRXW
The maximum time the IEC master station waits for an application layer command.
Data type:
Integer
Value:
0... 255
Unit:
Seconds
Default value:
10
&7
$FWLYDWLRQ7HUPLQDWLRQ7LPHRXW
The maximum time the IEC master station waits for a positive or negative
acknowledgement.
Data type:
Integer
Value:
0... 255
Unit:
Seconds
Default value:
60
Access: No
limitations
Autodialling attributes
MicroSCADA provides support for the autocaller functionality for the IEC 60870-
5-103 master protocol. An autocaller is a modem with functions for automatic dial-
up. The dial-up can be initiated by the IEC master or the IEC slave.
The autocaller must use the AT (Hayes) command set. Note that when using odd or
even parity, the modem must support 11-bit word length. In some cases, this feature
must be enabled by using the AT commands. Please refer to the documentation of
the modem used for further details.
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The following autocaller attributes are valid for the IEC 60870-5-103 master lines:
$&
$XWRFDOOHU(QDEOHG
The AC attribute states whether an autocaller is connected to the line (value 1) or not
(value 0).
Data type:
Integer
Value:
0 or 1
Default value:
0
Access:
No limitations
$6$XWRFDOOHU6
WDWH
This attribute indicates the state of the autocaller.
Data type:
Integer
Value:
0... 4
0 = IDLE, ready to make a call
1 = CONNECTED, transmission is activated
2 = BUSY, autocaller is dialling
3 = INITIAL, autocaller is uninitialised
4 = CONFIGURE, the IU attribute of the line is set to 0
Default value:
0
Access:
Read-only
&/
&RQQHFWLRQ7LPH/LPLWHG
This attribute determines whether a time limit has been set to the connection (value
1) or not (value 0). The maximum duration of the connection is determined by the
CT attribute.
Data type:
Integer
Value:
0 or 1
Default value:
0
Access:
No limitations
&7
&RQQHFWLRQ7LPH
The maximum time that a connection is allowed to last. The attribute is significant
only if time limiting is activated (CL = 1).
Data type:
Integer
Value:
1... 255
Unit:
Seconds
Default value:
0
Access:
No limitations
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&1
&RQQHFWLRQ
The CN attribute is used for dialling devices from NET and for breaking telephone
connections. This attribute has significance only in the unbalanced mode.
A call to a station or workstation is initiated by writing the phone number to the CN
attribute. The NET unit then commands the autodialling modem to dial the number.
The success of the dialling is reported as a system message. Writing an empty string
to CN breaks the connection. When dialling a station, the link address of the station
should be given at the end of the phone number string, preceded by the letter "
6".
This option is normally used to increase the communication performance on
multidrop lines. The station number has significance only in the unbalanced mode
(several stations on one line).
Data type:
Text
Value:
Text string of maximum 25 characters
Default value:
Empty text string
Access:
No limitations
([DPSOH
#SET NET1:SCN5 = "123456789S11"
&6&RQQHFWHG6
WDWLRQ
The link address of the station a NET unit is communicating with.
Data type:
Integer
Value:
0... 65535
0 = autocaller not defined or no communication
Default value:
0
Access:
Read-only
''
5DGLR'LVFRQQHFWLRQ'HOD\
Delay between the last data transfer and line disconnection.
Data type:
Integer
Value:
1... 255
Unit:
Seconds
Default value:
0
Access:
No limitations
0&
0RGHP&RPPDQG
Using this attribute, a modem can be controlled directly from SCIL with the AT/
Hayes commands. When an AT command is written to the MC attribute, it is
transmitted to the modem on the line. The response from the modem is read using
the same attribute.
Data type:
Text
Value:
Text string, an AT/Hayes command
Default value:
0
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Access:
No limitations
([DPSOH
#SET NET1:SMC3 = ("AS0?")’
3&
3XOVH'LDOOLQJ
This attribute determines the dialling principle used.
Data type:
Integer
Value:
0 = tone dialling
1 = pulse dialling
Default value:
0
Access:
No limitations
5&
5HPRWH&DOOV(QDEOHG
The RC attribute states whether remote calls are enabled on a line, i.e., if the NET
unit can be called from the stations connected to the line in question.
Data type:
Integer
Value:
0 = remote calls not enabled
1 = remote calls enabled
Default value:
0
Access:
No limitations
5:
5DGLR&RQQHFWLRQ:DLW7LPH
Normally the DCD (Data Carrier Detect) signal is used to indicate an active
connection. There are cases, however, e.g. on radiotelephone lines using half-duplex
links, where this is not possible. The RW attribute defines the waiting time in
seconds in such a situation: from the finishing of the dialling until the transmission
is started.
Data type:
Integer
Value:
0... 255
Unit:
Seconds
Default value:
0
Access:
No limitations
65
$XWRFDOOHU$765HJLVWHU
The S registers used by the autocallers follow the AT (Hayes) de facto standard.
All the autocallers which use the AT command set have a number of S registers. The
number of registers used and the meaning of the individual registers slightly varies
from one autocaller model to another. The contents of the S registers are therefore
not described in this document. Please refer to the modem manuals.
Using the SR attribute, the S registers number 2, 6, 7, 8, 9, 10, 11 and 12 are
accessed. By using the MC attribute (see above), other S registers can also be
accessed. The S registers 11 and 12 cannot be set.
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Data type:
Integer
Value:
See the modem manuals
Indexing:
Seconds
Access:
100 * line number + register number
([DPSOH
The S register number 6 of line 2 in NET1 is set = 4:
#SET NET1:SSR206 = 4
Examples of communication system configuration
The following SCIL procedures make the communication system configuration
which is related to the base system configuration example presented earlier in this
document. The first procedure creates an IEC 60870-5-103 slave line and two
stations on this line.
;***************************************************************************
; INPUT PARAMETERS
@NET = 3 ; NODE NUMBER OF THE PC-NET
@LINE = 1 ; LINE NUMBER
@STATIONS = (1,2) ; MASTER STATION NUMBERS
@APPLIC = 1 ; APPLICATION NUMBER
;
***************************************************************************
; CREATE A IEC 60870-5-103 MASTER LINE TO NET
#IF NET’NET’:SPO’LINE’==0 #THEN #BLOCK
#SET NET’NET’:SPO’LINE’ = 33
;IEC 60870-5-103
;master
#SET NET’NET’:SLK’LINE’ = 4
;link type
#SET NET’NET’:SPD’LINE’ = 500
;polling delay (ms)
#SET NET’NET’:SRI’LINE’ = 5
;receiver disabling time (ms)
#SET NET’NET’:SPL’LINE’ = 10
;polling limit
#SET NET’NET’:SPP’LINE’ = 10
;polling period(ms)
#SET NET’NET’:SRP’LINE’ = 1
;reply polling
#SET NET’NET’:SSD’LINE’ = "COM1" ;system device name
#SET NET’NET’:SMS’LINE’ = %APPLIC
;message application
#SET NET’NET’:SMI’LINE’ = %LINE+(6000+(%NET*100)) ;message identifier
#SET NET’NET’:SBR’LINE’ = 19200 ;baud rate
#SET NET’NET’:SPY’LINE’ = 2
;parity
#SET NET’NET’:SRD’LINE’ = 8
;receive bit count
#SET NET’NET’:STD’LINE’ = 8
;transmit bit count
#SET NET’NET’:SSB’LINE’ = 1 ;stop bit count
#SET NET’NET’:SPS’LINE’ = 20
;buffer pool size
#SET NET’NET’:SDE’LINE’ = 50
;CTS delay (ms)
#SET NET’NET’:SHT’LINE’ = 2000
;header timeout (ms)
#SET NET’NET’:STI’LINE’ = 2
;timeout interval (s)
#SET NET’NET’:STW’LINE’ = 0
;transmission wait delay (ms)
#SET NET’NET’:SRK’LINE’ = 0
;RTS keep up padding characters
#SET NET’NET’:SEN’LINE’ = 3
;enquiry limit
#BLOCK_END
;***************************************************************************
; CREATE IEC 60870-5-103 MASTER STATIONS TO NET
#LOOP_WITH I = 1..LENGTH(%STATIONS)
@STA=%STATIONS(%I)
#SET NET’NET’:SDV(29)
= (%STA,%LINE);create station to line
#SET STA’STA’:SAL
= 1
;allocated
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#SET STA’STA’:SAS
= %APPLIC ;allocating application
#SET STA’STA’:SMI
= 1000+%STA;message identification
#SET STA’STA’:SMS
= %APPLIC ;message application
#SET STA’STA’:SSE
= 1 ;system messages enabled
#SET STA’STA’:SSA
= %STA
;station address
#SET STA’STA’:SSL
= 2 ;station address length (bytes)
#SET STA’STA’:SPA
= %STA ;polling address link address)
#SET STA’STA’:SPL
= 1 ;polling address length (bytes)
#SET STA’STA’:SIL
= 2 ;info addr. length (bytes)
#SET STA’STA’:SCL
= 1 ;COT length (bytes)
#SET STA’STA’:SCA
= 32000 ;command address
#SET STA’STA’:SST
= 5000 ;SYS waiting time (ms)
#SET STA’STA’:SRT
= 10 ;application reply timeout (s)
#SET STA’STA’:SCT
= 60 ;application termin. timeout (s)
#SET STA’STA’:SSU
= 0 ;summer time (0=no, 1=yes)
#SET STA’STA’:SRW
= 10 ;reply window size
#SET STA’STA’:SML
= 230 ;max. message length
#SET STA’STA’:SDR
= 0 ;direction
#SET STA’STA’:SRM
= 0 ;running mode
#SET STA’STA’:SIU
= 1 ;set station in use
#LOOP_END
; Set line in use
#SET NET’NET’:SIU’LINE’ = 1
The second example is for an IEC 60870-5-103 master line with dial-up and two IEC
stations.
;***************************************************************************
; INPUT PARAMETERS
@NET = 3 ; NODE NUMBER OF THE PC-NET
@LINE = 2 ; LINE NUMBER
@STATIONS = (1,2) ; MASTER STATION NUMBERS
@APPLIC = 1 ; APPLICATION NUMBER
;***************************************************************************
; CREATE A IEC 60870-5-103 MASTER DIAL-UP LINE TO NET
#IF NET’NET’:SPO’LINE’==0 #THEN #BLOCK
#SET NET’NET’:SPO’LINE’ = 31
;IEC 60870-5-103
;master
#SET NET’NET’:SLK’LINE’ = 1
;link type
#SET NET’NET’:SPD’LINE’ = 500
;polling delay (ms)
#SET NET’NET’:SRI’LINE’ = 5
;receiver disabling time (ms)
#SET NET’NET’:SPL’LINE’ = 10
;polling limit
#SET NET’NET’:SPP’LINE’ = 10
;polling period(ms)
#SET NET’NET’:SRP’LINE’ = 1
;reply polling
#SET NET’NET’:SSD’LINE’ = "COM1"
;system device name
#SET NET’NET’:SMS’LINE’ = %APPLIC
;message application
#SET NET’NET’:SMI’LINE’ = %LINE+(6000+(%NET*100)) ;message identifier
#SET NET’NET’:SBR’LINE’ = 19200 ;baud rate
#SET NET’NET’:SPY’LINE’ = 2
;parity
#SET NET’NET’:SRD’LINE’ = 8
;receive bit count
#SET NET’NET’:STD’LINE’ = 8
;transmit bit count
#SET NET’NET’:SSB’LINE’ = 1
;stop bit count
#SET NET’NET’:SPS’LINE’ = 20
;buffer pool size
#SET NET’NET’:SDE’LINE’ = 50
;CTS delay (ms)
#SET NET’NET’:STW’LINE’ = 0
;transmission wait delay (ms)
#SET NET’NET’:SHT’LINE’ = 50
;header timeout (ms)
#SET NET’NET’:STI’LINE’ = 50
;timeout interval (ms)
#SET NET’NET’:SRK’LINE’ = 0
;RTS keep up padding
;characters
#SET NET’NET’:SEN’LINE’ = 3
;enquiry limit
#SET NET’NET’:SAC’LINE’ = 1
;autocaller enabled
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3. Instructions
3
#SET NET’NET’:SIU’LINE’ = 1
;set line in use, initialize
;modem
#BLOCK_END
;*************** Configure Autocaller *************************************
#SET NET’NET’:SIU’LINE’ = 0
#SET NET’NET’:SCL’LINE’ = 0
;connection time limited
#SET NET’NET’:SCT’LINE’ = 0
;connection time
#SET NET’NET’:SDD’LINE’ = 0
;radio disc. delay
#SET NET’NET’:SPU’LINE’ = 0
;pulse dialing
#SET NET’NET’:SRC’LINE’ = 0
;remote calls enabled
#SET NET’NET’:SRW’LINE’ = 0
;radio connection wait time
#SET NET’NET’:SIU’LINE’ = 1
;***************************************************************************
; CREATE IEC 60870-5-103 MASTER STATIONS TO NET
#LOOP_WITH I = 1..LENGTH(%STATIONS)
@STA=%STATIONS(%I)
#SET NET’NET’:SDV(29)= (%STA,%LINE);create station to line
#SET STA’STA’:SAL = 1
;allocated
#SET STA’STA’:SAS = %APPLIC
;allocating application
#SET STA’STA’:SMI = 1000+%STA
;message identification
#SET STA’STA’:SMS = %APPLIC
;message application
#SET STA’STA’:SSE = 1
;system messages enabled
#SET STA’STA’:SSA = %STA
;station address
#SET STA’STA’:SSL = 2
;station address length (bytes)
#SET STA’STA’:SPA = %STA
;polling address link address)
#SET STA’STA’:SPL = 1
;polling address length (bytes)
#SET STA’STA’:SIL = 2
;info addr. length (bytes)
#SET STA’STA’:SCL = 1
;COT length (bytes)
#SET STA’STA’:SCA = 32000
;command address
#SET STA’STA’:SST = 5000
;SYS waiting time (ms)
#SET STA’STA’:SRT = 10
;application reply timeout (s)
#SET STA’STA’:SCT = 60
;application term. timeout (s)
#SET STA’STA’:SSU = 0
;summer time (0=no, 1=yes)
#SET STA’STA’:SRW = 10
;reply window size
#SET STA’STA’:SML = 230
;max. message length
#SET STA’STA’:SDR = 0
;direction
#SET STA’STA’:SRM = 0
;running mode
#SET STA’STA’:SIU = 1
;set station in use
#LOOP_END
;dial number 123456789 and start polling link address 1
#SET NET’NET’:SCN’LINE’ = "123456789S1" ;connection
3.3.
After configuration
For each input signal from the process devices, the process database should contain
a process object whose value changes after process data is received. For each
command there should be an output process object. You should also create the bit
stream process object that receives transparent SPA messages from the slave.
Besides the configuration of the base and communication system, you also need to
configure the IEC slave.
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3. Instructions
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3.4.
How to test the configuration
When the slave and master stations have been physically tested and the
configuration has been completed, the connection and configuration can be tested
based on the following methods:
• Clear to Send (CTS) and Carrier Detect (DCD) signals. With the IEC master
protocols both the Clear to Send and Carrier Detect signals are always active.
• Diagnostic counters. When the communication between the slave and the master
is running properly and data is moving on the line, the diagnostic counters
indicating the number received and transmitted data messages should be
incrementing.
• By connecting a serial line analyser to the IEC 60870-5-103 line.
3.5.
Serial cable wiring diagram
When connecting the IEC master to a MicroSCADA IEC slave using a direct serial
cable, the wiring illustrated by Figure 3.5.-1 should be used:
)LJ 6HULDOFDEOHZLULQJGLDJUDP
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4. Technical description
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4. Technical
description
4.1.
General
4.1.1.
IEC 60870-5-103 Protocol
The IEC Technical Committee 57 (Working Group 03) has developed a protocol
standard for telecontrol, teleprotection and associated telecommunications for
electric power systems. The result of this work is IEC 60870-5. The five documents
listed in Chapter 1 specify the base of IEC 60870-5.
The IEC Technical Committee 57 has also generated a companion standard IEC
60870-5-103 for telecontrol equipment and systems with coded bit serial data
transmission for monitoring and controlling processes. This standard utilises the
series of documents of IEC 60870-5.
IEC 60870-5-103 is designed according to the Enhanced Protocol Architecture
(EPA) and it specifies the following Open Systems Interconnection (OSI) layers:
• Physical layer
• Data link layer
• Application layer
The physical layer can be any bit-serial physical layer, such as RS-232 C, RS-485
or fibre transceiver. In MicroSCADA the communication takes place by using the
serial port(s) of the base system computer. The interface used is RS-232 C.
4.1.2.
Level of implementation
In IEC 60870-5-103 the application level messages are called Application Service
Data Units (ASDUs). Each ASDU consists of one or several information objects
that contain the actual user data. MicroSCADA supports the ASDUs presented in
Table 4.1.2-1.
Table 4.1.2-1
Application Service Data Units supported by MicroSCADA
Type id
Description
Monitoring Direction
1
Time-tagged messages
2
Time-tagged messages with relative time
3
Measurands I
4
Time-tagged measurands with relative time
5
Identification
6
Time synchronisation
8
General interrogation termination
9
Measurands II
10
Generic data
11
Generic identification
23
List of recorded disturbance
26
Ready for transmission of disturbance data
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Private range ASDUs 32-255 can be received to a bitstream process object, which
address is defined with the CA station attribute.
Generic data and disturbance data handling are left out from this document.
Each application level message contains one or more information objects. The
information object address is constructed from the function type and the
information number codes. The first octet of the information object defines the
function type of the protection equipment used. The user can also define private
function types. Standard function types are defined in the following table.
Table 4.1.2-2
Standard function types
It is also possible to use function types from a private range. The use of such
functions is left open in this document.
27
Ready for transmission of a channel
28
Ready for transmission of tags
29
Transmission of tags
30
Transmission of disturbance values
31
End of transmission
Controlling Direction
6
Time synchronisation
7
General interrogation
47
Generic data
48
General command
49
Generic command
50
Acknowledgement for disturbance data transmission
Type id
Description
Function type
Parameter in Controlling Direction
128
Distance protection
160
Overcurrent protection
176
Transformer differential protection
192
Line differential protection
254
Generic function type
255
Global function type
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The information number of the protection equipment is defined by the second
object of the information object. It is defined in the following tables.
Table 4.1.2-3
Information number ranges
Table 4.1.2-4
Data in monitor direction
Monitor direction
0... 15
System functions
16... 31
Status
32... 47
Supervision
48... 63
Earth fault
128... 143
Auto-reclosure
144... 159
Measurands
240... 255
Generic functions
Control direction
0... 15
System functions
16... 31
General command
240... 255
Generic functions
Information
number
ASDU
Type
Description
System functions in monitoring direction
0
8
End of general interrogation
0
6
Time synchronisation
2
5
Reset FCB
3
5
Reset CU
4
5
Start/Reset
5
5
Power On
Status indications in Monitoring Direction
16
1
Auto-recloser active
17
1
Teleprotection active
18
1
Protection active
19
1
LED reset
20
1
Monitor direction blocked
21
1
Test mode
22
1
Local parameter setting
23
1
Characteristic 1
24
1
Characteristic 2
25
1
Characteristic 3
26
1
Characteristic 4
27
1
Auxiliary input 1
28
1
Auxiliary input 2
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1
Auxiliary input 3
30
1
Auxiliary input 4
Supervision indications in Monitoring direction
32
1
Measurand supervision I
33
1
Measurand supervision V
35
1
Phase sequence supervision
36
1
Trip circuit supervision
37
1
I >> back-up supervision
38
1
Voltage transformer fuse failure
39
1
Teleprotection disturbed
46
1
Group warning
47
1
Group alarm
Earth fault indications in monitoring direction
48
1
Earth fault 1
49
1
Earth fault 2
50
1
Earth fault 3
51
1
Earth fault forward
52
1
Earth fault reverse
Fault indications in monitoring direction
64
2
Start/pick-up L1
65
2
Start/pick-up L2
66
2
Start/pick-up L3
67
2
Start/pick-up N
68
2
General trip
69
2
Trip L1
70
2
Trip L2
71
2
Trip L3
72
2
Trip I>>
73
4
Fault location in X ohms
74
2
Fault forward/line
75
2
Fault reverse/busbar
76
2
Teleprotection signal transmitted
77
2
Teleprotection signal received
78
2
Zone 1
79
2
Zone 2
80
2
Zone 3
81
2
Zone 4
82
2
Zone 5
Information
number
ASDU
Type
Description
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83
2
Zone 6
84
2
General start/pick-up
85
2
Breaker failure
86
2
Trip measuring system L1
87
2
Trip measuring system L2
88
2
Trip measuring system L3
89
2
Trip measuring system E
90
2
Trip I>
91
2
Trip I>>
92
2
Trip IN>
93
2
Trip IN>>
Auto-reclosure indications in monitoring direction
128
1
Circuit breaker ‘on’ by auto-recloser
129
1
Circuit breaker ‘on’ by long-time auto-recloser
130
1
Auto-recloser locked
Measurands in monitoring direction
144
3
Measurand I
145
3
Measurand I, V
146
3
Measurand I, V, P, Q
147
3
Measurand In, Ven
148
9
Measurand I
L1,2,3
, V
L1,2,3
, P, Q, F
Information
number
ASDU
Type
Description
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Table 4.1.2-5
Data in control direction
For further details see the IEC 60870-5-103 interoperability list for MicroSCADA
in the end of this document.
4.2.
Communication
This chapter gives a more detailed description of the implementation of the IEC
60870-5-103 master protocol in MicroSCADA. The attributes that can be used for
device communication are also described. Examples of how to exchange data
between the master and the slave are given in this chapter along with information
about the IEC 60870-5-103 status codes.
IEC 60870-5-103 uses an unbalanced communication mode where a master station
controls the data traffic by polling the outstations sequentially. In this case the
master is the primary station that initiates all the message transfer. The outstations
are secondary stations (slaves) that may transmit only when they are polled.
4.2.1.
Protocol converter
Each IEC 60870-5-103 master station configured on a line of a NET unit acts as a
protocol converter between the IEC 60870-5-103 protocol and a base system. An
internal protocol of MicroSCADA is used in communication between the
MicroSCADA nodes, for example, between a base system and a NET unit.
In IEC60870-5-103 the data sent from the slave to the master can be divided in two
classes: class 1 and class 2. By default, the master polls class 2 and the slave tells in
reply when it has data for request in class 1.
Information
number
ASDU
Type
Description
System functions
0
7
Initialisation of general interrogation command
0
6
Time synchronisation
Supervision indications in monitoring direction
16
20
Auto-recloser on/off
17
20
Teleprotection on/off
18
20
Protection on/off
19
20
LED reset
23
20
Activate characteristic 1
24
20
Activate characteristic 2
25
20
Activate characteristic 3
26
20
Activate characteristic 4
Response is
with same
information
number
1
Response
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4. Technical description
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Addressing
In IEC 60870-5-103 there are three kinds of addresses:
•
/LQNDGGUHVV: the address of the IEC link. This address is defined by the PA
(Polling Address) attribute of the IEC station. In most cases it is the same as the
station address.
•
6WDWLRQDGGUHVV:a common address of an ASDU. There can be several common
addresses of an ASDU with the same link address. This address is defined by the
SA (Station Address) attribute of the IEC station.
•
6LJQDODGGUHVV:aninformation object identifier. This address is unique for each
signal with the same common address of an ASDU. The information object
identifier is constructed from two octets:
• The first octet is for Function Type, 0... 255. It defines the type of
the protection equipment used.
• The second octet is for Information Number, 0... 255. It defines the
type of the information within a given function type.
MicroSCADA supports only unstructured addresses. However, this does not prevent
communication with the IEC slaves by using structured addresses, since the two
types of addresses just demonstrate two different ways of presenting the same
address. For example, a two-byte address can be represented as follows:
unstructured = 256*upper byte(Information Number) + lower byte(Function Type).
In MicroSCADA both the input and output process objects share the same address
range, which means that there can not be two process objects with overlapping
addresses. If the user wants this feature, e.g. a command and the corresponding
indication having the same address, it can be achieved by using offsets that are
outside the information address range limited by the information object identifier
length. The offset used must be large enough to set only the bits of the information
object address that are more significant than the bits within the information object
identifier range (0... 65535).
([DPSOH
(bits numbered from 0 to 15)
16 bit addresses
Information object address 2000 (decimal) = 00000011111010000 (binary)
Offset = 131072 (decimal) = 100000000000000000 (binary), sets bit 16
Address for indication = 2000 (decimal) = 00000011111010000 (binary)
Address for command = 2000 + 131072 = 133072 (decimal) =
00000011111010000 (binary)
The NET unit interprets both addresses as 2000, since bits above the information
object identifier range are left out.
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4. Technical description
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4.2.2.
Device communication attributes
*,
*HQHUDO,QWHUURJDWLRQ
Setting this attribute sends a general interrogation command (ASDU 7) to the IEC
slave station.
By setting 1 to the GI attribute a general interrogation message is generated. By
using the vector value, the user can define the scan number (SCM) byte value in the
given vector parameter. The received confirmation must have the same value in the
supplementary information (SIN) field. In this case the first parameter of the vector
is unused.
Data type:
Vector or integer
Value:
Vector (ENA,[SCM]) or integer 1
Access: No
limitations
'HVFULSWLRQRIWKHYHFWRUSDUDPHWHUV
ENA:
No defined meaning
SCM:
Scan number
6<
6\QFKURQLVH
The SY attribute is used to make an accurate time synchronisation of IEC stations.
No time arguments are needed since the time sent in the synchronisation message is
taken from the internal clock in MicroSCADA. Stations can be synchronised one by
one or by using a broadcast synchronisation message, which synchronises all the
stations configured on an IEC line.
Data type:
Vector
Value:
Vector (COT, [BRO])
Access: Write-only
'HVFULSWLRQRIWKHYHFWRUSDUDPHWHUV
COT:
Cause of transmission of the synchronisation messages. Valid
values: 8 = time synchronisation.
BRO:
Broadcast, determines whether the synchronisation message is a
broadcast message (value 1) or not (value 0). If omitted, value 0
is assumed.
&2
&RPPDQG2XW
The CO attribute can be used for generating command messages to IEC stations. All
kinds of commands can be generated: data commands, application commands and
system commands. Transparent data and messages related to disturbance data in the
command direction are also sent by using the CO attribute.
The data content of the command, which in the IEC standards is called a set of
information objects, is given as transparent data, octet by octet. Note that the user is
responsible for the validity of the data content. For more information, please refer to
the IEC standards listed in Chapter 1.
Data type:
Vector
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Value
Vector (TYPE, ADDR, COT, DATA)
Value range:
0... 65535
Access: Write-only
Indexing
RID; this parameter specifies which response ASDU ID
(data in monitoring direction) is used as a reply message
to the command sent by the CO attribute. This response
message is also sent to the bitstream process object of the
base system (where OA = CA-attribute). The termination
process object is not updated. If RID is not given or its
value is 0, the CO-command behaves as it was an ASDU
20 ‘general command’. If a non-blocking bit is set in RID,
the process commands are possible to send, although the
NET waits for a reply to a CO-command. If the private
response bit is set in RID, the expected reply ASDU is
from the private range, i.e. transparent SPA commands.
Table 4.2.2-1
RID parameter
'HVFULSWLRQRIWKHYHFWRUSDUDPHWHUV
TYPE:
Type identification of the ASDU, integer. This parameter can be
a type identification given in the IEC 60870-5-103 companion
standard or a private one. Examples of type identifications of
command messages are given in the table below.
If the Type Identification octet is 255 (0xFF), the value is used
as a 16 bits WORD whose upper byte is set to VSQ byte of
message.
Sending the Transparent SPA messages in the IEC 60870-5-103
message format is described in Section 4.2.5.
Table 4.2.2-2
Examples of type identifications of command messages
RID: set of bits <abnnnnnnnn> where
n
<0>
ASDU 1 with COT 20/21 or ASDU 10 with COT 40/ 41 is
a reply to the CO-command
<1... 255> response ASDU ID
b
<0>
blocking mode
<1>
non-blocking mode
a
<1>
next private range response (ASDU ID <32-255>) is a
valid reply to the CO-command
Type id
Description
6
Time synchronisation
7
General interrogation
47
Generic data
48
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ADDR:
Information object identification of the command, integer.
Consists of Function Type and Information Number.
COT:
Cause of transmission of the message, integer. This parameter
describes the reason why a message is sent. The causes of
transmission shown in Table 4.2.2-3 are valid when using the
CO attribute.
Table 4.2.2-3
The causes of transmission valid for the CO attribute
DATA:
The set of information objects of the command as integers. Each
integer corresponds to one octet in the IEC message.
Some examples of the use of the CO attribute are presented below.
;general interrogation, scan number 0
#SET STA’STA_NR’:SCO = (7,(255+256*0),9,0)
;auto-recloser off command, address 4256
;return information identifier 0 (obligatory)
#SET STA’STA_NR’:SCO = (20,(160+256*16),20,1,0)
4.2.3.
Data in monitoring direction
Data in monitoring direction, i.e. from the slave to the master, is received by IEC
type process objects. Data in monitoring direction includes, for example, indications
and measured values. The relation between the IEC 60870-5-103 ASDUs and
MicroSCADA process object types is presented in Table 4.2.3-1:
Table 4.2.3-1
Relations between the MicroSCADA process object types and
IEC 60870-5-103 ASDUs
48
General command
49
Generic command
50
Acknowledgement for disturbance data transmission
Type id
Description
COT
Description
8
Time synchronisation
9
Initialisation of general interrogation
20
General command
31
Transmission of disturbance data
40
Generic write command
42
Generic read command
Type id
Description
Process object type
1, 2
Double point information
Double binary input
3, 4, 9
Measured value
Analog input
10, 11, 23,
27, 28, 29,
30, 31
Generic functions, disturbance
data handling
Bit stream
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Binary inputs
Binary indications are always double binary information in IEC 870-5-103. Double
indications (ASDUs 1, 2) are received by double binary indication process objects.
Note that in MicroSCADA the double indication values 1 and 2 are reverse
compared to the ones in the IEC message, in order to make them equal to the double
binary values of other master protocols implemented in MicroSCADA.
Analog inputs and digital inputs
Measured values (ASDUs 3, 4 and 9) can be received by analog input process
objects. The value ranges of the ASDUs are as shown in Table 4.2.3-2.
Table 4.2.3-2
Value ranges of measured value and step position ASDUs
ASDUs 3 and 9 are for normal measurands. ASDU 4 is for fault location. Fault
location does not set status (OS) or overflow (OF) attributes in process objects.
If the value of the measure and the value sent from the IEC slave is larger than the
value range of the ASDUs 2 or 9, the value is limited to the range and the overflow
bit of the quality descriptor is set. This bit is sent to the OR attribute of the process
object. The value has also an invalid flag, which is shown as an invalid value in the
process object’s OS attribute.
Frames within ASDUs 3 or 9, where there are several information elements e.g.
measurements, only the first information element uses the base address. The rest of
the information elements are addressed as follows.
Measurement address = basic address+ (n-1) x 1000000(hex)
n = number of information elements (measurements) in frame.
ASDU 4 represents fault location information where short-circuit location is written
to the OV attribute. Relative time at the beginning of a short circuit is written to the
RA attribute and fault number to the process object’s RB attribute. This event has
also a normal time tag, which is written to the process object’s RT and RM
attributes.
!
In the polling schema of the IEC103 protocol, device responses always contains
data. The data consists usually of current analog input values. These continous
analog input process object updates generates load in the MicroSCADA basesystem
and some delta value should be used in the process objects.
Type id
Value type
Value range
Value in MicroSCADA
6, 32
Step position
–64... 63
Integer –128... 127
9, 10, 34
Normalised
-1... (1-2^-15)
Integer –32768... 32767
11, 12
Scaled
–32768... 32767
Integer –32768... 32767
13, 14, 36
Short floating point 32-bit float
Real
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Disturbance and generic data
It is possible to receive disturbance data and generic data to process the database.
However, it is left out of this document. In case you need more information related
to this subject, contact your local supplier.
4.2.4.
Data in control direction
Data that is sent from the IEC master to the IEC slave or slaves are called data in
control direction. This data includes the data command, application command and
system command messages. These messages are described in this section.
4.2.4.1.
Command handling in IEC 60870-5-103 protocol
Command confirmation
The IEC 60870-5-103 protocol includes the concept of command confirmations.
Basically a confirmation is a message sent by the slave indicating that a command
has been received, executed or rejected. Commands are confirmed in two steps as
follows:
• A command is
FRQILUPHG when it is received in a link layer. A confirmation can
be positive (command accepted) or negative (command rejected). The status
ICCC_NEGATIVE_CONFIRMATION indicates of the latter.
• A command is
DFNQRZOHGJHG when its execution is finished. An
acknowledgement can be positive (command successfully completed)
or negative (command failed).
The following exceptions apply:
• The slave device does not respond a clock synchronisation command (ASDU 6).
Termination messages can be received by analog input or IEC command termination
process objects with the UN attribute equal to the STA object number of the IEC
master station and the OA attribute equal to command address + offset. Offset is
2000000 hexadecimal = 33554432 decimal. The OV attribute of the process object
provides the following information presented in Table 4.2.4.1-1:
Table 4.2.4.1-1
Values of the process object receiving activation
confirmations and terminations
The length of the activation confirmation and termination timeouts is determined by
the RT and CT attributes of the IEC master station, respectively.
Values
Description
0
Positive acknowledgement
1
Link layer negative acknowledgement received
2
No link layer acknowledgement
3
No command acknowledgement received
4
Negative acknowledgement
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Command transactions
In the MicroSCADA implementation of the IEC 60870-5-103 master protocol only
one data object command transaction can be open at the same time. This means that
while an IEC master station waits for a termination to a data, application or system
command, a new command cannot be issued. The status
13867 ICCC_CONFIRMATION_OF_CMD_IS_NOT_READY
is returned in this situation.
4.2.4.2.
Data commands
Object commands
Object commands (e.g. switching device open/close commands) are sent to the IEC
slave by setting a binary output process object or by using the CO attribute of the
IEC station. The used ASDU is 20 (generic command). The unit number (UN
attribute) of the output process object must be the same as the STA object number
of the corresponding IEC master station. The address of the process object must
equal to the address of the command in the IEC slave. IEC object commands are
direct commands.
The value set to the process object is a list of attributes. The attributes included in
the list are shown in Table 4.2.4.2-1. Optional attributes are indicated with an
asterisk (*).
Table 4.2.4.2-1
Process object attributes included in an IEC object
command
([DPSOH
;binary command, protection on
#SET ’LN’:POV’IX’ = LIST(OV=1,CT=20,TY=265*20+16)
4.2.4.3.
General interrogation command
When the IEC slave station receives a general interrogation command (ASDU 7)
from the master, it must send all the selected input signals to the master without time
tag. The cause of transmission is set to 9. Interrogation commands can be sent by
using the GI or CO attributes of the IEC master station as shown in the examples
below.
;activate general interrogation
#SET STA’STA_NR’:SGI = 1
;activate general interrogation with scan number 0
Attr.
Values
Default
Description
TY
The TY attribute is calculated from the equation
256*ASDU number + information number. The ASDU
value for general binary commands is 20. The
information number depends on the command type
and it is calculated from the object address.
OV
Value of the command 0 = off, 1 = on
CT
Cause of Transmission. With the general commands
this attribute has always the value 20.
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4. Technical description
Configuration Guide
#SET STA’STA_NR’:SCO = (7,65365,9,0)
For a general interrogation command the NET needs only the ASDU type and
possibly the scan number. Other values in the vector are not used.
4.2.4.4.
Clock synchronisation command
The clock synchronisation commands (ASDU 6) are used for synchronising the
IEC slave stations. This command can be sent by using the SY attribute of the IEC
master station as shown below:
;activate broadcast synch
#SET STA’STA_NR’:SSY = (8,1)
;activate station synch
#SET STA’STA_NR’:SSY = (8,0)
4.2.5.
Transparent data commands
It is possible to exchange transparent messages between a MicroSCADA IEC slave
and an IEC master. Transparent messages are used for the transmission of SPA-bus
messages or any ASCII format messages to a device understanding these messages.
Transparent SPA messages are sent as commands to the slave by using the CO
attribute of the IEC master station and received by a bit stream process objects.
Transparent messages use a non-IEC103 defined data unit with a special structure
and function type. SPA-bus messages are in the data unit of the message in the same
format as they are sent and received from the SPA-bus devices.
The example shown in Figure 4.2.5.-1 has a MicroSCADA base system as a master,
and one device as the IEC slave. The following steps are taken according to Figure
4.2.5.-1.
Step
:
The SPA command “RF:” is sent from the IEC master to the IEC
slave as an encapsulated SPA message (ASDU 255) to address
56565 by using the TD attribute as in the following:
#SET STA1:SCO(512) = (65535,(245+256*220),255,82,70,58)
Index 512 indicates that the private range response is valid. The
first vector value sets the value 255 to the type and VSQ fields.
These have to be always the same. The COT value can be
anything. The values 82, 70, 58 are the ASCII-letters “RF:“
changed to a decimal format.
Step
:
The SPA reply message is received by a bit stream process
object with the UN attribute equal to the STA object number of
the IEC slave station. Attached to this process object is an event
channel, which activates a command procedure. The SPA
message is parsed by the command procedure as in the
following:
@SPA_MSG = TYPE_CAST(%BS,"TEXT")
In this case, the message can also be interpreted by using the TYPE_CAST function
to convert the message into text.
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Configuring MicroSCADA for IEC
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Configuration Guide
4. Technical description
4
)LJ
)ORZRIWKHWUDQVSDUHQW63$PHVVDJHV
By using a mechanism like the one described above, it is possible to read and write
the parameters of the SPA units over an IEC 60870-5-103 line. The same kind of
mechanism can also be used for other purposes, for example, exchanging free-
format text messages between the master and the slave.
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COM 500
4. Technical description
Configuration Guide
Table 4.2.5-1
Example: IEC103 transparent message sent by MicroSCADA
Table 4.2.5-2
Example: Transparent reply message sent by IEC 103 device
The end character ‘lf’ in the SPA-bus reply is left out from the data unit.
4.3.
Status codes
The following status codes are defined for the IEC 60870-5-103 master protocol.
Some typical reasons for some of the status codes are also given.
Status codes are sent as system messages, which can be received by analog input
project objects with a unit number (UN) 0 and an object address (OA) as determined
by the MI attribute of the line or station.
START CHARACTER 68H
LENGTH 13H
LENGTH 13H
START CHARACTER 68H
CONTROL 43H
ADDRESS
STRUCTURE TYPE FFH FFH
TRANSMISSION CAUSE N/A
ADDRESS
FUNCTION TYPE F5H
INFORMATION NUMBER DCH
SPA message. An example:
Read message >21R1I1:XXcr
CHECKSUM
END CHARACTER 16H
START CHARACTER 68H
LENGTH 15H
LENGTH 15H
START CHARACTER 68H
CONTROL 08H
ADDRESS
STRUCTURE TYPE FFH FEH
TRANSMISSION CAUSE 20H
ADDRESS
FUNCTION TYPE FFH
INFORMATION NUMBER DCH
SPA-reply message.
An example: <21D:2.13:XXcr
CHECKSUM
END CHARACTER 16H
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Configuring MicroSCADA for IEC
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Configuration Guide
4. Technical description
4
Link layer status codes
17600
IGTP_REMOTE_LINK_CONTINUOUSLY_BUSY
The Data Flow Control (DFC) bit of the messages from the slave is set
for more than 15 seconds.
17601
IGTP_TIMEOUT_WHILE_TRANSMITTING
The CTS signal or the end of transmitted message is not received in
correct time. The DE attribute controls the CTS waiting time; the
transmission time of the message is automatically calculated.
17602
IGTP_TIMEOUT_WHILE_WAITING_RESPONSE
Timeout while waiting for an acknowledgement to a message.
17604
IGTP_LINK_NOT_READY
The application level sends a command before the communication
between the master and the slave is established.
17605
IGTP_REMOTE_LINK_BUSY
17606
IGTP_REMOTE_LINK_NOT_RESPONDING
The master does not receive a reply from the slave.
17607
IGTP_LINE_ACTIVATED
The station has been set in use by using the IU attribute.
17608
IGTP_LINE_PASSIVATED
The station has been set out of use by using the IU attribute.
17610
IGTP_RECEIVER_OUT_OF_BUFFERS
Internal software error.
17611
IGTP_LINE_PASSIVATED
The autodialling system controls the line. IEC communication is not
possible until the line is activated with a call.
17611
IGTP_LINE_ACTIVATED
The line is activated by the autodialling system, but the handshaking
sequence between the master and the slave is not ready yet.
17620
IGPC_ILLEGAL_ATTRIBUTE_VALUE
The value written to one of the line attributes is incorrect.
Application layer status codes
13851
ICCC_INVALID_ATTRIBUTE_VALUE
The value set to an attribute of an IEC station is incorrect, e.g. one of
the elements of the vector written to the SD attribute is out of range.
13852
ICCC_INVALID_INDEX_RANGE
The index range used when accessing an attribute of an IEC station is
incorrect.
13853
ICCC_INVALID_ATTRIBUTE
The STA object attribute used is not valid for the IEC 60870-5-103
master protocol.
13854
ICCC_ASDU_TABLE_NOT_CREATED
Internal software error.
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4. Technical description
Configuration Guide
13855
ICCC_UNKNOWN_ASDU_NAME
The name of the ASDU written to a STA object attribute is not
supported.
13857
ICCC_MESSAGE_BUFFER_FULL
Internal software error. The value of the ML attribute may be too small.
13858
ICCC_MESSAGE_FILLING_ERROR
Internal software error. The value of the ML attribute may be too small.
13859
ICCC_UNKNOWN_ASDU
The number of the ASDU written to a STA object attribute is not
supported.
13862
ICCC_SC_DATA_OVERFLOW
Internal software error.
13863
ICCC_DEVICE_SUSPENDED
The IEC station is in the suspended state. The reason for this could be
that the link is not properly established (e.g. incorrect cable wiring) or
the slave station does not respond.
13864
ICCC_MESSAGE_SENDING_ERROR
Internal software error. This may be the result of a problem in wiring
or hardware.
13865
ICCC_REMOTE_DEVICE_REPLIES_WITH_NACK
The slave did not accept the message but responded with a negative
acknowledgement instead. Not used in the unbalanced mode.
13866
ICCC_LINK_NOT_READY
A message is sent to a line with a non-established communication.
13868
ICCC_OUT_OF_BUFFERS
Internal software error. Operation could not be completed since the
buffer pool has ran out of buffers.
13870
ICCC_CONFIRMATION_TIMEOUT
An activation confirmation to a command was not received from the
IEC slave in the time defined by the RT attribute.
13871
ICCC_NEGATIVE_CONFIRMATION
The activation confirmation received from the IEC slave was negative,
i.e. the command failed.
13872
ICCC_DEVICE_STOPPED
The station has been set out of use by using the IU attribute.
13873
ICCC_NO_ADDRESS_IN_ACP
Internal software error.
13875
ICCC_UNEXPECTED_TYPE_IN_ACP
Internal software error.
13876
ICCC_UNSUPPORTED_COMMAND_TYPE
The value of the TY attribute written to an output process object is not
a type id of a supported ASDU.
13877
ICCC_OV_VALUE_NOT_FOUND
The OV attribute is missing from the list written to an output process
object.
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Configuration Guide
4. Technical description
4
13879
ICCC_QL_VALUE_NOT_FOUND
The QL attribute is missing from the list written to an output process
object.
13880
ICCC_TY_VALUE_NOT_FOUND
The TY attribute is missing from the list written to an output process
object.
13881
ICCC_DEVICE_STARTED
The station has been set out of use by using the IU attribute.
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Configuring MicroSCADA for IEC
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5. Interoperability list
5
5.
Interoperability list
for Microscada IEC 60870-5-103 Master
Not supported
Supported both by the MicroSCADA base system and LIB 5xx application
software.
Supported by the MicroSCADA base system, but may need additional
application engineering.
5.1.
Physical layer
Electrical interface
EIA RS-485
Number of loads.................... for one protection equipment
RS-232
NOTE - EIA RS-485 standard defines unit loads so that 32 of them can be
operated on one line. For detailed information refer to clause 3 of the EIA
RS-485 standard.
Optical interface
Glass fibre
Plastic fibre
F-SMA type connector
BFOC/2,5 type connector
Depends on transceiver
Transmission speed
9 600 bit/s
19 200 bit/s
5.2.
Link layer
There are no choices for the link layer.
5.3.
Application layer
Transmission mode for application data
Mode 1 (the least significant octet first), as defined in clause 4.10 of IEC 60870-5-4,
is used exclusively in this companion standard.
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5. Interoperability list
Configuration Guide
COMMON ADDRESS of ASDU
One COMMON ADDRESS OF ASDU (identical with station address)
More than one COMMON ADDRESS OF ASDU
5.3.1.
Selection of standard information numbers in monitor
direction
System functions in monitor direction
,1)6HPDQWLFV
<0>
End of general interrogation
<0> Time synchronisation
<2> Reset FCB
<3> Reset CU
<4> Start/restart
<5> Power on
Status indications in monitor direction
,1)6HPDQWLFV
<16> Auto-recloser active
<17> Teleprotection active
<18> Protection active
<19> LED reset
<20> Monitor direction blocked
<21> Test mode
<22> Local parameter setting
<23> Characteristic 1
<24> Characteristic 2
<25> Characteristic 3
<26> Characteristic 4
<27> Auxiliary input 1
<28> Auxiliary input 2
<29> Auxiliary input 3
<30> Auxiliary input 4
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5. Interoperability list
5
Supervision indications in monitor direction
,1)6HPDQWLFV
<32> Measurand supervision I
<33> Measurand supervision V
<35> Phase sequence supervision
<36> Trip circuit supervision
<37> I>> backup operation
<38> VT fuse failure
<39> Teleprotection disturbed
<46> Group warning
<47> Group alarm
Earth fault indications in monitor direction
,1)6HPDQWLFV
<48> Earth fault L
1
<49> Earth fault L
2
<50> Earth fault L
3
<51> Earth fault forward, i.e. line
<52> Earth fault reverse, i.e. busbar
Fault indications in monitor direction
,1)6HPDQWLFV
<64> Start /pick-up L
1
<65> Start /pick-up L
2
<66> Start /pick-up L
3
<67> Start /pick-up N
<68> General trip
<69> Trip L
1
<70> Trip L
2
<71> Trip L
3
<72> Trip I>> (backup operation)
<73> Fault location X in ohms
<74> Fault forward/line
<75> Fault reverse/busbar
<76> Teleprotection signal transmitted
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5. Interoperability list
Configuration Guide
<77> Teleprotection signal received
<78> Zone 1
<79> Zone 2
<80> Zone 3
<81> Zone 4
<82> Zone 5
<83> Zone 6
<84> General start/pick-up
<85> Breaker failure
<86> Trip measuring system L
1
<87> Trip measuring system L
2
<88> Trip measuring system L
3
<89> Trip measuring system E
<90> Trip I>
<91> Trip I>>
<92> Trip IN>
<93> Trip IN>>
Auto-reclosure indications in monitor direction
,1)6HPDQWLFV
<128> CB ’on’ by AR
<129> CB ’on’ by long-time AR
<130> AR blocked
Measurands in monitor direction
,1)6HPDQWLFV
<144> Measurand I
<145> Measurands I, V
<146> Measurands I, V, P, Q
<147> Measurands I
N
, V
EN
<148> Measurands I
L1,2,3
, V
L1,2,3
, P, Q, f
Generic functions in monitor direction
,1)6HPDQWLFV
<240> Read headings of all the defined groups
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5. Interoperability list
5
<241> Read values or attributes of all the entries of one group
<243> Read directory of a single entry
<244> Read value or attribute of a single entry
<245> End of general interrogation of generic data
<249> Write entry with confirmation
<250> Write entry with execution
<251> Write entry aborted
5.3.2.
Selection of standard information numbers in control
direction
System functions in control direction
,1)6HPDQWLFV
<0> Initiation of general interrogation
<0> Time synchronisation
General commands in control direction
,1)6HPDQWLFV
<16> Auto-recloser on/off
<17> Teleprotection on/off
<18> Protection on/off
<19> LED reset
<23> Activate characteristic 1
<24> Activate characteristic 2
<25> Activate characteristic 3
<26> Activate characteristic 4
Generic functions in control direction
,1)6HPDQWLFV
<240> Read headings of all the defined groups
<241> Read values or attributes of all the entries of one group
<243> Read directory of a single entry
<244> Read value or attribute of a single entry
<245> General interrogation of generic data
<248> Write entry
<249> Write entry with confirmation
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5. Interoperability list
Configuration Guide
<250> Write entry with execution
<251> Write entry abort
5.3.3.
Basic application functions
Test mode
Blocking of monitor direction
Disturbance data
Generic services
Private data
5.3.4. Miscellaneous
Measurands are transmitted with ASDU 3, as well as with ASDU 9. As defined in
section 7.2.6.8 of the protocol specification, the maximum MVAL can either be 1,2
or 2,4 times the rated value. No different rating shall be used in ASDU 3 and ASDU
9, since there is only one choice for each measurand.
Remarks
The following things should be noted when using MicroSCADA with the IEC
60870-5-103 master protocol:
1. The SU (Summer Time) of synchronisation messages (Telegram Type 6) bit is
not used in MicroSCADA.
2. In the initialisation sequence MicroSCADA will send a general interrogation
command to the IEC slave right after a confirmation to a SEND RESET
message has been received. Sending of the general interrogation can be disabled
by setting the RM attribute of the IEC master station.
3. The time accuracy of IEC 60870-5-103 synchronisation depends on the CPU
load of the base system configuration and on the hardware used, and should be
measured in each system.
Measurand
Max. MVAL = rated value times
1,2
or
2,4
Current L
1
Current L
2
Current L
3
Voltage L
1-E
Voltage L
2-E
Voltage L
3-E
Active power P
Reactive power Q
Frequency f
Voltage L
1
- L
2
COM 500
Index
Configuration Guide
Index
Page
$
AC
Activation Reply Timeout
............................................................................................. 31
Activation Termination Timeout
................................................................................... 31
Addressing
AL
Allocating Application
Allocation
Analog inputs
Application Layer Attributes
......................................................................................... 26
Application Service Data Units (ASDUs)
........................................................ 27
AS
ASDU number
AT commands
Autocaller AT S Register
............................................................................................... 34
Autocaller Enabled
Autocaller State
%
Baud Rate
Binary inputs
BR
Buffer Pool Size
&
CA
Carrier Blocking
Cause of transmission (COT)
........................................................................... 14
CB
CL
CN
CO
Command
+DQGOLQJ
7UDQVDFWLRQV
Command Address
Command Out
Configuration
Connected Station
Connection
Connection Time
Connection Time Limited
.............................................................................................. 32
CS
CT
CTS Delay
CTS signal
'
Data in monitoring direction
......................................................................................... 48
DC
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60870-5-103 Master Protocol
1MRS752012-MEN
Configuring MicroSCADA for IEC
60870-5-101 Master Protocol
COM 500
Index
Configuration Guide
DCD signal
DD
DE
DFC
Diagnostic Counters
................................................................................................ 25
Digital inputs
Direction
Double binary inputs
DR
DV
(
EN
Enhanced Protocol Architecture (EPA)
......................................................................... 39
Enquiry Limit
)
Fatal error
Fault location information
............................................................................................. 49
Function type
*
General interrogation
.............................................................................................. 46
GI
+
Header Timeout
HT
,
IEC 60870-5-101 master protocol
................................................................................... 9
IEC 60870-5-101 slave protocol
................................................................................... 13
IEC 60870-5-103 master protocol
........................................................................... 16
IL
In Use
Information Address Length
......................................................................................... 28
Information number
................................................................................... 40
IU
/
Length of Cause of Transmission Information
............................................................. 28
Level of implementation
............................................................................................... 39
LI
Line Number
Link address
Link Layer Attributes
Link Type
LK
0
Maximum Message Length
........................................................................................... 29
MC
Measurements
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Index
Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
Configuration Guide
Message Application
...............................................................................................25
Message Identification
............................................................................................24
MI
ML
Modem Command
Modem Signal
MS
Multi-drop network topology
........................................................................................ 17
1
Network Topologies
No limitations
2
OA
Object commands
Object Status
OF
OM
Open Systems Interconnection (OSI)
............................................................................ 39
OR
OS
OV
3
PA
Parity
PC
PD
PL
PO
Point-to-point network topology
................................................................................... 17
Polling Address
Polling Address Length
................................................................................................. 27
Polling Delay
Polling Limit
Polling Period
PP
Private range
Process object types
Protocol
Protocol converter
PS
Pulse Dialing
PY
4
QL
5
RA
Radio Connection Wait Time
........................................................................................ 34
Radio Disconnection Delay
........................................................................................... 33
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60870-5-101 Master Protocol
COM 500
Index
Configuration Guide
RB
RC
RD
Read, conditional write
................................................................................................. 16
Read-only
Receive Interrupt Enable Delay
.................................................................................... 24
Receiver Data Bit Count
............................................................................................... 20
Remote Calls Enabled
Reply Polling
Response Timeout
RI
RID
RK
RM
RP
RT
RTS Keep up Padding Characters
................................................................................. 23
RTS signal
Running Mode
RW
6
SA
SB
SCM
SD
SE
Secondary polling Limit
................................................................................................ 22
SG
Signal Address
SIN
SL
SR
ST
Station Address
Station Address Length
................................................................................................. 27
Status codes
$SSOLFDWLRQ/D\HU
/LQN/D\HU
Stop Bits
Structured address
SU
SY
Synchronise
SYS 500
SYS Waiting Time
SYS_BASCON.COM
............................................................................................. 14
System
&RPPDQGV
0HVVDJHV
................................................................................................. 24
2EMHFWV
System Device Name
System Messages Enabled
............................................................................................ 29
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Index
Configuring MicroSCADA for IEC
60870-5-103 Master Protocol
Configuration Guide
7
TD
TI
Transmission Wait Delay
............................................................................................... 23
Transmitter Data Bit Count
........................................................................................... 21
Transparent SPA
............................................................................................... 37
TW
TY
8
UN
Unstructured address
:
Wiring
Write-only
Document Outline
- Introduction
- Safety information
- Instructions
- Technical description
- Interoperability list
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