Diagnostics; Possibilities For Error Evaluation - Siemens S7-300 Operating Instructions Manual

Diagnostics

12.1

Possibilities for error evaluation

Overview
● With the programming device/PC, you can read out the diagnostic buffer with the
● You can evaluate errors in your program. The following options are available:
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
parameter assignment user interface using Test > Error Evaluation.
– You will see the error class and error number along with plain text.
– The RETVAL return values in the instance DBs of the integrated FBs as a group
display for errors that occurred during execution of the FBs.
– The error bits of the jobs as a group display for errors that occurred while executing a
job.
– The error bit DATA_ERR as a group display for an error detected by the FM 352
during a write job.
– The error identifier in JOB_ERR, for the cause of an error during communication
between the FB and FM 352.
– FB CAM_DIAG for reading out the diagnostic buffer of the FM 352. Here, you can find
out the causes of errors in jobs and asynchronous events (operating errors, diagnostic
errors).
– Diagnostic interrupts for fast reaction to events.
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