Siemens S7-300 - Page 205

Programming without SFB 52 and SFB 53
D.4 FC CAM_CTRL (FC 1)
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
205
Reaction to errors
If faulty data were written by a write job, the module returns the message DATA_ERR = 1. If
an error occurs during communication with the module for a write or read job, the cause of
the error is entered in the JOB_ERR parameter in the channel DB.
● Error in a write job:
If an error occurs in a job, the trigger bit is canceled and the error bit (_ERR) and the
done bit (_D) are set. The trigger bit is also canceled and the error bit (_ERR) is set for all
write jobs still pending.
The pending read jobs will continue to be processed. JOB_ERR is reset again for each
job.
● Error in a read job:
If an error occurs in a job, the trigger bit is canceled and the error bit (_ERR) and the
done bit (_D) are set.
The read jobs still pending continue to be processed. JOB_ERR is reset again for each
job.
For further error information, refer to the JOB_ERR and DATA_ERR parameters (see
chapter "Possibilities for error evaluation (Page 145)").