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Service and maintenance
9.2 Error messages
9.2
Error messages
You have the following options for error analysis of the modules:
• Via error messages of the communications module
• Via error messages of the WBM
• Via OPC UA error messages
These alternative methods are described below.
9.2.1
Error messages of the communications module
Note that depending on the cause of the error, the "ERROR" status LED or the "ER" reader LED
of the respective reader interface always flashes if error messages occur. You can read the
error via the error codes or alternatively via the WBM log.
In the following table, you will find an overview of the error codes as well as the flashing
patterns of the "ER" LED of the respective reader at which the error occurred.
Table 9- 7
Features of the communication modules
"ER"
Block (hex)
LED
4x
0xE1FE0100
4x
0xE1FE0200
4x
0xE1FE0300
116
Error description
Cannot write to the memory of the transponder.
Possible causes:
•
Transponder memory is defective.
•
EEPROM transponder was written too frequently and has reached the end of its service life.
•
Transponder is write protected (Memory Lock)
Presence error
The transponder is no longer within the transmission window of the reader. The command was
not or only partially executed.
Read command: There is no valid data in "IDENT_DATA".
Write command: The transponder that has just left the antenna field contains an incomplete data
record.
Possible causes:
•
Operating distance between reader and transponder is not being maintained.
•
Configuration error: The data record to be processed is too large (in dynamic mode).
•
With timeout: No transponder in the antenna field
Address error
The address range of the transponder has been exceeded.
Possible causes:
•
Start address of the command start has been incorrectly set.
•
Wrong transponder type
•
The area to be written to is write-protected.
Operating Instructions, 03/2022, C79000-G8976-C578-02
SIMATIC RF166C
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