Siemens SIMATIC S7-1500 Function Manual page 179

Job status
The following output parameters indicate the status of the job processing:
● Motion Control instructions with "Done" parameter
● Motion Control instructions without "Done" parameter
● "Busy" parameter
● "CommandAborted" parameter
● "Error" parameter
As long as the "Execute" or "Enable" parameter is set to TRUE, the output parameters will
be updated. Otherwise the parameters "Done", "Error" and CommandAborted" are
correspondingly only set for one cycle.
Termination of active jobs
A running Motion Control job is terminated by the initiation of a new Motion Control job. In
the process, the current dynamic setpoints (acceleration, deceleration, jerk, velocity) are set
to the values of the overriding job.
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
The normal completion of a job is indicated with parameter "Done" = TRUE.
The achievement of the job target is indicated by means of other parameters
(e.g. "Status", "InVelocity"). For more information, refer to the section "Tracking running
jobs (Page 184).
As long as a job is being processed, the parameter "Busy" shows the value TRUE. If a
job was ended or aborted, "Busy" shows the value FALSE.
If a job was aborted by another job, CommandAborted shows the value "TRUE".
If an error occurs in the Motion Control instruction, the "Error" parameter shows the value
TRUE. The ErrorID parameter shows the cause of the error.
Programming
7.3 Motion Control instructions
179