Diagnostic Messages - Siemens SIMATIC PN/J1939 LINK Operating Instructions Manual

Diagnostics
10.2 Diagnostic messages to the S7 controller
10.2.2

Diagnostic messages

The table below lists the following information:
● Message text assigned to diagnostics
● Causes of errors and possible solutions
Diagnostic messages
Table 10- 7
Module/submodule
for which the diag-
nostic information
is signaled
Manager
Manager
Manager
Manager
Manager
Manager
Manager
58
Diagnostic messages
Channel diagnostics
error
CAN bus off
CAN error passive
CAN Rx buffer overflow
CAN Tx buffer overflow
Hardware fault detected:
- ({1:x})
Internal communication
error
Invalid address
Cause of error and possible solution
CAN messages can no longer be sent or received.
Check for errors in the hardware installation (e.g.
terminating resistor) or communication settings (e.g.
transmission rate).
In this state, the device can no longer initiate repeti-
tion of defective CAN messages.
Check for errors in the hardware installation (e.g.
terminating resistor) or communication settings (e.g.
transmission rate). The error can also occur if no
other devices are connected to the CAN bus.
Received CAN messages were lost.
Reduce the CAN transmission rate, increase the
PROFINET cycle time or reduce the PROFINET IO
data to be transmitted.
CAN messages to be sent could not be sent and
were discarded.
This is caused by too much CAN communication
traffic or when other problems occurred in the CAN
communication ("Bus off" or "Error passive" state). If
there is neither "Bus off" nor "Error passive", try re-
ducing the amount of communication traffic or in-
creasing the CAN bit rate.
Hardware faults were detected when switching on
the module.
The module must be replaced.
Received and sent CAN messages might have been
lost.
Check for communication problems caused by EMI.
If these problems can be excluded, there may be a
hardware fault and the module must be replaced.
The configured source address is occupied. The null
address was assigned via the "Address Claiming"
procedure.
Change the source address set in the module pa-
rameters.
Operating Instructions, 12/2018, A5E45307564-AA
SIMATIC PN/J1939 LINK