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(5) The Node Error Counter (02BFH to 02C5H: 7 words)
The CAN controller used in the DN211 has a function of notifying error state changes of the local
station error state (error active ⇔ error passive ⇔ busoff) based on the number of transmission
errors occurring.
The CAN controller also has a function of notifying the DN211 of "overrun error" if the DN211
fails to take the data sent from slave devices.
The DN211 maintains the current error state and a history of error state changes since
communication was activated. This register indicates a history of error state changes since
communication was activated and the total number of transmission times and reception times.
Table 4.6 Node Error Counter Configuration
02BFH Current error state (hexadecimal scale)
02C0H Number of transmission times since communication was activated
02C1H Number of reception times since communication was activated
02C2H Number of error active occurrence times
02C3H Number of error passive occurrence times
02C4H Number of busoff occurrence times
02C5H Number of overrun error occurrence times
Current error state Error code (hexadecimal scale)
Initial mode 00H
Error active state 01H
Error passive state 02H
Busoff state 03H
Overrun error occurrence 04H
Reserved Other