User guide
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8645 - 71
Information on the subject of bus errors can be found under Operating and Display Ele-
ments / LED Status Displays / BUS STATUS LED Condition Table
The following table lists the error messages and warnings indicated by the LEDs FN (Failure Number) and FS
(Failure Select).
1
1 No error: Nominal module list transferred correctly to the EEPROM.
2 Nominal module list could not be written to the EEPROM.
1 No supply voltage for bus header.
2 Error in supply voltage for bus header.
Error in access to EEPROM.
4 Short circuit at bus header output.
5 A non-existent bus header output has been triggered.
4
1 No supply voltage for inside / RIO outputs.
2 Complete failure of an inside or RIO module.
No supply voltage for inside / RIO inputs.
4 Short circuit at inside / RIO output.
5 A non-existent inside / RIO output has been triggered.