Status Bits In The System Status Of The Cpx Terminal; I/O Diagnostic Interface And Diagnostic Memory - Festo CPX Series Manual

4. Diagnosis and error treatment

4.4.1 Status bits in the system status of the CPX terminal

4.4.2 I/O diagnostic interface and diagnostic memory

4−16
A CPX−CMXX error is always specified in the system status of
the CPX terminal as follows:
Module type in which an error has occurred:
Bit 0 − 2 = 0
Bit 3 = 1:
Error in analogue /function or technology module
Type of error
Bit 4 − 6 = 0
Bit 7 = 1: Other error
Further instructions on the structure of the status bits can be
found in the CPX system manual P.BE−CPX−SYS−...
The CPX−CMXX reports the CPX error category to the
CPX master (CPX fieldbus node or CPX−FEC/CPX−CEC).
Diagnosis of the CPX error categories can be made via the
I/O diagnostic interface and the diagnostic memory of the
CPX terminal.
Diagnostic memory data
(I/O diagnostic interface)
The specific representation of diagnostic messages of the
CPX−CMXX in the diagnostic memory of the CPX terminal
occurs as shown in Tab. 4/9.
Festo P.BE−CPX−CMXX−E N en 0910a