Task overrun in case of priority 0 of a task

Which products are affected?

EVS93xx-EI (Servo PLC Version 6.3 DSMC control board)
EVS93xx-ET (Servo PLC Version 6.3 DSMC control board)
EPL-10200-EI (Drive PLC Version 6.3)

What happens?

An overrun Taskx error is indicated (C0161 = 201-208). The PLC changes into the 'Stop' status and trips.

When does the problem occur?

An overrun Taskx occurs when creating a time-controlled or event-controlled task with priority zero (task never starts).

Possible diagnostics?

None.

Short-term measures/recommendations?

Do not create a time-controlled or event-controlled task with priority = 0. In order to avoid the start of a task it can be deleted from the task configuration.

Evaluation:

The error only occurs during commissioning or troubleshooting since a project does not use a task with priority = 0.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/20034002/1/