Festo control block CPX-CEC
5 Diagnosis
5.1 General error behaviour
Warning
When an error occurs, the controller carries on the active program instead of stopping.
Uncontrolled actuator movements can cause collisions resulting in serious injury.
• Integrate error handling mechanisms for all error categories in the user program.
• Make sure that nobody enters the positioning range of the drives or other connected actuators.
The following diagnostic options are available for the controller CPX-CEC-...-V3:
Diagnosis via Advantages
LEDs Fast local error detection using LEDs ( section Status LEDs).
Handheld CPX-MMI Fast local error detection ( CPX system manual)
Codesys Online diagnosis
– In the diagnostic node ( section Diagnostic messages in PLC diagnosis)
– On the Log tab using logger: FestoLog ( section Diagnostic messages on the
[Log] tab)
– In the Scan Festo Devices dialog ( section Diagnosis in the "Scan Festo
Devices" dialog)
Web server Shows system diagnosis
User program Detailed diagnostic evaluation:
– Event in Festo_General_3.library
– Supports the function blocks of the Festo_CPX_3.library
Table: Diagnostic options of the CPX-CEC-...-V3
Error numbers CPX system manual P.BE-CPX-SYS-... ( www.festo.com/sp).
56