Festo CPX-E-EC Translation Of The Original Instructions page 21

Function
Structure of emergency message – error register (byte 2)
Bit Meaning
–
3
4 Communication error
–
5 6
...
7 Manufacturer specific
Tab. 22
Structure of emergency message – status bits (byte 3)
Bit Meaning
0 Error at valve
1 Error at output
2 Error at input
3 Error at analogue or
function module
4 Undervoltage
5 Short circuit/overload
6 Wire break
7 Other error
Tab. 23
Structure of emergency message – CPX-E module number (byte 4)
Bit Meaning
0 7 CPX-E module number
...
Tab. 24
Structure of emergency message – CPX-E error number (byte 5)
Bit Meaning
0 7 CPX-E error number
...
1) è Description of system CPX-E
Tab. 25
Festo — CPX-E-EC — 2020-01a
Explanation
–
Node guard, heartbeat, fieldbus-specific only
–
Wire break, other error
Explanation
Module type in which an error has occurred
Type of error
Explanation
Number of the module with diagnostic message
Explanation
CPX-E error number
1)
21