Error Numbers; Error Classification - Festo CPX System Manual

5. Diagnostics and error handling

5.2.3 Error numbers

Error class
1
2
3
Tab. 5/7: Error classification
Festo P.BE−CPX−SYS−EN en 0902e
Detailed information on module−specific diagnosis can be
found in the manual for the relevant module.
Possible faults of the CPX terminals are divided into three
error classes with different priority depending on the serious
ness of the fault. If a fault occurs, the system error LED
(SF LED) will flash depending on the error class.
Flashing sequence of the
SF LED
1 * flashes, pause time
2 * flashes, pause time
3 * flashes, pause time
If several errors occur together, the error with the highest
priority will have precedence. This means that:
The system error LED flashes according to the higher
priority
The number of the error with the higher priority will be
entered in the system diagnostic data under function
number 1938 (error number).
Within an error class, errors of modules with a lower module
number have higher priority, e.g. errors of module number 0
have the highest priority within a specific error class. Errors of
module number 1 have the second highest priority, etc.
Error weighting
Simple (e.g. simple user fault) low
Medium (standard diagnosis
and extended diagnosis)
High (hardware fault/internal
fault)
Priority
medium
high
5−19