Diagnostics
11.2 Diagnostic messages to the S7 controller
SIMATIC PN/CAN LINK
144 Operating Instructions, 03/2022, A5E39895388-AC
Diagnostic-relevant events in "CANopen Manager" operating mode
Table 11- 5 Diagnostic-relevant events in "CANopen Manager" operating mode
Event for triggering Event for
Referenc
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
LINK
Internal communication error
information was
transmitted to the
S7 controller via
LINK
Buffer overflow when sending CAN packets
information was
transmitted to the
S7 controller via
LINK
Buffer overflow when receiving CAN packets
information was
transmitted to the
S7 controller via
LINK
Receipt of PDO with incorrect length
information was
transmitted to the
S7 controller via
LINK
PDO
Heartbeat / node guarding error
available again and
in the expected
ding slave
module
the expected state
ding slave
Error during boot-up of a slave
booted successfully
ding slave
if known
Receipt of an EMCY message
information was
transmitted to the
S7 controller via
ding slave
module
the EMCY
message