5
Diagnostics and error handling
Festo – P.BE-CPX-CTEL-EN – 1601b – English
47
5.6
Diagnostics with the Festo Maintenance Tool (CPX-FMT)
The Festo Maintenance Tool (CPX-FMT) offers extended functions for diagnostics and troubleshooting
with the CTEL master module.
Fig. 5.2
General information regarding operation and commissioning of the CPX terminal with the
FMT can be found in the CPX system description (
è
P.BE-CPX-SYS-...) and in the online
help of the CPX-FMT software.
5.7
Behaviour after lost connection to the device
With an interruption of the communication between the CTEL master module and a device (e.g. through
a wire break), the CTEL master module puts out various diagnostic/error messages. These are (also)
dependent on the setting of the parameter “I-Port configuration”.
During operation, the I-Ports are checked for the I/Os and I/O lengths that are set and assigned in
the CPX system.
If the parameter of the corresponding I-Port is set to “Use existing device”, no error is issued.
If the parameter of the corresponding I-Port is set to “Expect device”, the CTEL master module issues
the error “I-Port device missing/failed” (CPX error number 57) when communication with the device is
interrupted.
If input bytes are assigned for the separated device in the CPX system, these are auto
matically set to “0”.
For existing output bytes, their last known status is saved.
Summary of Contents for CPX-CTEL-4-M12-5POL
Page 58: ......
