Siemens SIMATIC S5 Manual page 329

IP 266 Troubleshooting
10.2 List of Errors and Possible Causes
Due to the exceptionally large number of errors which may be flagged on the
PLC, it is necessary to have at hand a comprehensive list showing the error
message for each error code. This list begins on the next page. In some cases,
information has also been provided on measures for error recovery. For each
error listed you will find a cross-reference to one or more sections in the manual;
these sections provide more detailed information on the error in question.
10-3
EWA 4NEB 812 6057-02