Diagnostics Via Status Bits - Festo CPX Series Manual

3. Diagnosis
3.3

Diagnostics via status bits

Festo P.BE−CPX−PN IO−EN en 1008b
The CPX terminal provides 8 status bits if you activate this
function using DIL switches (see section 1.4.2) assuming
the corresponding PLC hardware configuration (see Tab. 1/3).
Also observe the continued explanations for configuration in
section 2.6.2.
The status bits are used for displaying common diagnostics
messages (global error messages). The status bits are
configured like inputs; you can select the address freely
during the configuration.
If all status bits supply a 0−signal, no error will be reported.
Bit Diagnostic information
with 1−signal
0 Error in valve
1 Error at output
2 Error at input
3 Error on analogue module/
technology module
4 Undervoltage
5 Short circuit/overload
6 Wire break
7 Other error
Tab. 3/8: Status bits of the CPX bus node (optional)
Description
Module type in which an
error has occurred error has occurred
Type of error
3−11