Omron C200HW-CORT21-V1, Руководство по эксплуатации

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Emergency message
Section 6-2
88
Comm Err (byte 3)
In case bit 4 in the error register is set, Comm Err (byte 3) gives more
detailed information on which communication errors are present.
Comm Err.00 Receive queue overflow
This bit is set when the C200HW-CORT21-V1 is not able to
process all the incoming messages that it was configured to
receive. This bit is turned off as soon as the receive queue
did not overflow for at least 100 ms.
0: No overflow during the last 100 ms.
1: Overflow of the receive queue.
Comm Err.01 Transmit queue overflow
This bit is set when the C200HW-CORT21-V1 is not able to
transmit all TPDOs requested by the host PLC. This bit is
turned off as soon as the transmit queue did not overflow for
at least 100 ms.
0: No overflow during the last 100 ms.
1: Overflow of the transmit queue.
Comm Err.02 CAN in Error Passive Mode
This bit is set when the communication interface of the Unit
detects a high occurrence of errors on the bus. The Unit will
still communicate but will not send high-priority error
messages on the bus (hence "Error Passive"), because the
errors could be related to the Unit itself.
0: No high occurrence of errors on the bus or the errors
have been resolved before going Bus-Off.
1: The communication interface has gone in Error Passive
Mode due to a high occurrence of errors on the bus.
Comm Err.03 Recovered from Bus Off
If the high error rate on the bus remains after going to Error
Passive Mode, the interface will go to "Bus Off" state, and
refrain from further communication.
At that moment, the Unit is unable to indicate to the network
that it has stopped communicating. After communication
resumes, it can indicate that it has recovered from Bus Off.
The Bus Off recovery sequence can be started by setting IR
n.03. This will only be successful when the problem that
caused Bus Off has been resolved.
0: No recent Bus Off recovery.
1: The Unit has recovered from Bus Off. This bit is negated
with the next Emergency Message or at least within 100
ms after the bus off recovery.
7 6 5 4 3 2 1 0
Comm Err
Receive queue overflow
Transmit queue overflow
CAN in error passive mode
Recovered from Bus Off
PDO length error