Diagnostics
11.2 Diagnostic messages to the S7 controller
SIMATIC PN/CAN LINK
Operating Instructions, 03/2022, A5E39895388-AC
145
Diagnostic-relevant events in "CANopen Slave" operating mode
Table 11- 6 Diagnostic-relevant events in "CANopen Slave" operating mode
Event for triggering Event for withdrawal Reference Additional
Transition of the CAN controller to
"Bus Off" state
CAN controller exits "Bus
Off" state again
Transition of the CAN controller to
"Error Passive" state
"Error Passive" state
Internal communication error
was transmitted to the
S7 controller via
Buffer overflow when sending CAN
packets
was transmitted to the
S7 controller via
Buffer overflow when receiving
CAN packets
was transmitted to the
S7 controller via
Receipt of PDO with incorrect
length
was transmitted to the
S7 controller via
Heartbeat / node guarding error
was transmitted to the
S7 controller via
Diagnostic-relevant events in "CAN transparent" mode
Table 11- 7 Diagnostic-relevant events in "CAN transparent" mode
Transition of the CAN controller to
"Bus Off" state
CAN controller exits "Bus Off"
state again
Transition of the CAN controller to
"Error Passive" state
CAN controller exits "Error
Passive" state again
Internal communication error
Diagnostic information was
transmitted to the S7 controller
Buffer overflow when sending CAN
packets
Diagnostic information was
transmitted to the S7 controller
Buffer overflow when receiving
CAN packets
Diagnostic information was
transmitted to the S7 controller
Receipt of a CAN packet with
incorrect length
Diagnostic information was
transmitted to the S7 controller
Corresponding input module
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