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
information
Transition of the CAN controller to
"Bus Off" state
CAN controller exits "Bus
Off" state again
PN/CAN LINK
---
Transition of the CAN controller to
"Error Passive" state
CAN controller exits
"Error Passive" state
again
PN/CAN LINK
---
Internal communication error
Diagnostic information
was transmitted to the
S7 controller via
PROFINET
PN/CAN LINK
---
Buffer overflow when sending CAN
packets
Diagnostic information
was transmitted to the
S7 controller via
PROFINET
PN/CAN LINK
---
Buffer overflow when receiving
CAN packets
Diagnostic information
was transmitted to the
S7 controller via
PROFINET
PN/CAN LINK
---
Receipt of PDO with incorrect
length
Diagnostic information
was transmitted to the
S7 controller via
PROFINET
PN/CAN LINK
COB ID of the PDO
Heartbeat / node guarding error
Diagnostic information
was transmitted to the
S7 controller via
PROFINET
PN/CAN LINK
ID of failed node
Diagnostic-relevant events in "CAN transparent" mode
Table 11- 7 Diagnostic-relevant events in "CAN transparent" mode
Event for triggering
Event for withdrawal
Reference
Transition of the CAN controller to
"Bus Off" state
CAN controller exits "Bus Off"
state again
PN/CAN LINK
Transition of the CAN controller to
"Error Passive" state
CAN controller exits "Error
Passive" state again
PN/CAN LINK
Internal communication error
Diagnostic information was
transmitted to the S7 controller
via PROFINET
PN/CAN LINK
Buffer overflow when sending CAN
packets
Diagnostic information was
transmitted to the S7 controller
via PROFINET
PN/CAN LINK
Buffer overflow when receiving
CAN packets
Diagnostic information was
transmitted to the S7 controller
via PROFINET
PN/CAN LINK
Receipt of a CAN packet with
incorrect length
Diagnostic information was
transmitted to the S7 controller
via PROFINET
Corresponding input module
Summary of Contents for SIMATIC PN/CAN LINK
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