6
Diagnostics
Festo – GDCP-CMMO-ST-EA-SY-EN – 1301a – English
89
6.3
Diagnostic memory
You can read the diagnostic memory via FCT. It includes up to 200 diagnostic messages and is backed
up if possible in the event of power failure. If the memory is full, the oldest element will be overwritten
(ring buffer).
Fig. 6.3
Diagnostic memory in FCT
The diagnostic memory can also be read via the CMMO-ST website (
section 5.3):
Fig. 6.4
Diagnostic memory on the website
Deleting the diagnostic memory
You can erase the diagnostic memory via FCT. When deleting, a “switch-on event” (malfunction 3Dh) is
generated. The malfunction counter is not reset.