HIER460394R1 Abb Plc Modules

Product Specification

Product Details

The master/slave channel goes bus off when an excessive number of communication

errors are detected and the CAN chip automatically goes off-line.An event message

will inform the users that bus off has occurred. The master/slave channel will automatically

try to recover from bus off and if succeeded an event message will informthe user that the master/slave channel has recovered from bus off.

To turn off the automatically bus off recovery you can use the system parameter

Automatically Bus Restart. Refer to Technical reference manual - System parameters.

The symptom is caused by:

Different baud rates on the master and some I/O units (the I/O units do not support auto baud rate)

No or faulty power on the bus

Short circuit between CAN high and CAN low

Cable length on trunk cables and drop cables

Faulty terminations

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Moore Automation Limited is the world's leading provider of high quality

industrial automation spare parts, whether it is a new spare parts, or outdated /

discontinued parts, and the technology is dedicated to the normal operation of

the enterprise at the best cost, the best quality and efficient way. Whether it is

customer service, work efficiency or delivery speed, we always strive for

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