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jJ Wolcomo .2) E-learning

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♦    Coniroltef Settngs

♦    HM Osplays % Ladder

♦    Communications

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i] About controłer netw

About coflboUef networks ił CANbus Networkng_

Ol WessagetoKCTaŁle 3) CANbus UrwCAN

i]    CANopen

j]    CANbus Layer 2

J] CANbus ISC. via Nelwotk Operands J] SAE JI939 J] COM Ports J]RS4850p*ons J] Assrgnmg a Unii O number j] Network Operands CommuoicaSng Data V«a CANbus i] Accessmg a Networked PIC via PC J] Check Neiwork Status CANbus nelwotk problem*

♦    l&lmes

♦    Data Tables

♦    Troubleshootmg

♦    FAOs

Getting Started with CANbus

How to assign a unique Unit ID number to each networked controller How to initialize the CANbus port CANbus Specifications

Power Reguirements 24VDC (	±4%), 40mA max per unit
Gahamc Isolation between CANbus and controller Yes
B«i ud ratę	Max. Network Cable Lcngth:
1 Mbit/s	25 m
500 Kbit/s	100m
250 Kbit/s	250 m
125 Kbit/s	500 m
100 Kbit/s	500 m
50 Kbt/s	1000 m
20 Kbrt/s	1000 m

Notę • Cable lengihs over 500 meters require an addtional power suppiy Winny Considerations

Use twisted-par cable DewceNet® thick shelded Iwisled par cable is recommended

NetWork termmators These are supplied with the controller Place terminatora at each end of the CANbus network Resistance must be set to 1%, 1210, 1/4W Connect the ground signal to the earth at only one point near the power suppiy Tbe network power suppiy need not be at the end of the network Maximum number of contrdlers m a network 63