Error Handling - Siemens SIMATIC FM 351 Installation Manual

Error Handling

Preliminary The FM 351 Positioning Function Module provides diagnostic possibilities
Remarks
for:
Purpose of this This chapter describes the procedure during the error evaluation for the
Chapter
FM 351.
There are three different cases for diagnosis:
Evaluating Errors How you link modules which are capable of diagnosis into your user program
with the Program
and how you evaluate the diagnostic signals in a program is described in the
following manuals:
The basic description of the S7-300 diagnostic system is described in the
User Manual Standard Software for S7 and M7, STEP 7.
FM 351 Positioning Function Module
EWA 4NEB 720 6001-02
Errors on the module and the connected peripherals.
Errors which occur when controlling the module.
Module defects
Module defects are faults or defects on the module. The module must be
replaced.
Errors for which the FM 351 initiates a diagnostic interrupt.
General errors which the module stores in its diagnostic buffer.
These are the errors
– which the FM 351 detects during parameterization and controlling and
which do not initiate a diagnostic interrupt and
– those which occur in operation asynchronously to the control and
which initiate a diagnostic interrupt due to a group error bit.
Programming Manual System Software for S7-300 and S7-400, Program
Design (OB types, diagnostic interrupt OB 82).
Reference Manual System Software for S7-300 and S7-400, System and
Standard Functions.
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