EM100-F User Manual
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Page 91 of 93
6.4.3. Heartbeat Message
This is sent by an individual node when the heartbeat protocol is activated. It contains only one
byte, indicating the NMT State.
4 = Stopped.
5 = Operational.
127 = Pre-Operational.
Note: bit-7 is reserved.
6.4.4. Emergency Message
This is sent by an individual node to warn of an error condition in the internal functioning of that
node.
EM100->Master
Registered
Manufacturer Specific Error
The above shows the error code 8110 which is CAN overrun (i.e. objects are lost).
Emergency Objects:
Monitoring – CAN Over-run (objects lost).
Monitoring – CAN in error passive mode.
Monitoring – Node Guarding or heartbeat error.
Monitoring – Recovering from bus off.
Protocol – PDO not processed due to error length.
Protocol – PDO length exceeded.