Error Diagnostics - WAGO 753-668/000-004 Manual

120 Diagnostics
9.5

Error Diagnostics

Diagnostic signaling of the F I/O module is not safety related!
Diagnostic signaling of the F I/O module cannot be part of the safety function
under any circumstances.
After detecting internal or external errors, the F I/O module outputs diagnostic
messages to the safe PLC via the fieldbus. Errors are identified by the diagnostic
messages and appropriate troubleshooting measures can be taken.
The F I/O module provides diagnostic messages via the indicators (see Section
"Device Description" > ... > "Indicators") and the diagnostic services of the
respective fieldbus system (PROFIBUS or PROFINET).
All diagnostic messages that the F I/O module makes available are listed below
in alphabetical order.
The structure of the diagnostic messages is described in the fieldbus coupler
manuals.
The F I/O module 753-668/000-004 can be operated on the
WAGO-I/O-SYSTEM 750 fieldbus couplers specified in Section "Technical Data"
> ... > "Communication":
Sporadic "PROFIsafe CRC2 Error" diagnostics messages occur when
switching on in PROFIBUS operation.
When the F I/O module is operated with PROFIBUS, the "PROFIsafe CRC2
Error" diagnostics message may occur when secure communication is started.
This is due to system conditions and can be ignored during the start-up phase.
The message is deleted after confirmation of operation start.
Manual
Version 1.0.0, valid from HW/SW Version 01/01
753-668/000-004 4FAI 0/4-20 mA Diff PROFIsafe
WAGO-I/O-SYSTEM 750