Corrected from: L-force c300 controller V3.12
L-force p300 controller V3.12
Response of the new version:
When starting the PLC program, updating the process image of CAN nodes, will no longer lead to a task overflow or a watchdog exception.
What happens?
When the PLC program is started, a task overflow (watchdog exception) occurs. PLC program processing is stopped.
When does this behaviour occur?
When the PLC program is started, sporadically, a watchdog exception may occur if the watchdog was activated for the task in charge of updating the process image of the CAN nodes (see bus cycle task).
Which products are affected?
L-force c300 controller V3.8 and higher
L-force p300 controller V3.8 and higher
Short-term measures/recommendations:
Deactivate the watchdog for the bus cycle task.
Evaluation:
When the PLC program is started, an increased runtime may occur and lead to a task overflow. If the watchdog for this task is active, PLC program processing will be stopped as a result.
