Diagnostics Via Status Bits - Festo CPX-FB36 Instruction Manual

4. Diagnostics
4.3

Diagnostics via status bits

4-12
Status bits are internal inputs that serve to display common
diagnostic messages (global error messages). If all status bits
supply a 0-signal, no error is reported. If at least one status
bit delivers a 1-signal, there is an error (è Tab. 4/10).
If the status bits are to be transmitted via a "polled" or
"change of state" connection, you must set the DIL switches
on the bus node accordingly (è Tab. 1/3).
Bit Diagnostic information
with logic 1
0 Error at valve
1 Error at output
2 Error at input
3 Error at analogue module/
technology module
4 Undervoltage
5 Short circuit/overload
6 Wire break
7 other error
Tab. 4/10: Overview of status bits
Detailed information on the status bits can be found in the
CPX system description (è P.BE-CPX-SYS-...).
Description
Module type in which the er­
ror has occurred
Module type in which the
error has occurred
Error type
Error type
Error type
Error type
Festo CPX-FB36-EN en 1611a English