Siemens SIMATIC S7-1500 Function Manual page 188

Programming
7.5 Tracking active jobs
Error during job execution
If an error occurs during execution of the Motion Control job, then this is indicated in the
"Error" parameter with the value TRUE. The signal status of the "Execute" parameter
influences the indication duration in the "Error" parameter:
You set "Execute" after the occurrence of the error to
FALSE.
①
The job is started with a positive edge at the "Execute" parameter. Depending on the program, "Execute" can be reset
to the FALSE value while the job is still busy, or retain the TRUE value until the job has been completed.
②
While the job is active, the "Busy" parameter shows the value TRUE.
③
An error occurs during the execution of the job. When the error occurs, the "Busy" parameter changes to FALSE, and
the "Error" parameter to TRUE.
④
As long as the "Execute" parameter retains the value TRUE after the occurrence of the error, the "Error" parameter
also retains the value TRUE.
⑤
If the "Execute" parameter has been set to FALSE before the occurrence of the error, then the "Error" parameter only
shows the value TRUE for one execution cycle.
188
You set "Execute" before the occurrence of the error to
FALSE.
Function Manual, 07/2014, A5E03879256-AC
S7-1500 Motion Control V13 Update 3