Festo IFB11-03, Electronic Manual

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4. Commissioning
4−35
Festo P.BE−VIFB11−03−EN en 0503g
4.4.4 Diagnosis with Selectron SELECAN
The following SELECAN bus diagnoses are available within the
PMC 40:
Diagnosis via PMC 40
Diagnosis via user program
Diagnosis via PMC 40
The valve terminal behaves in SELECAN like equivalent
Selectron CAN−I/O modules with regards to diagnosis. Special
error messages are not output.
Diagnosis via user program
With the user program you can request diagnosis information
from a bus slave using the following operands:
System flag
Status bits of valve terminals
System flags SM11.01 SM11.29
The system flags SM11.01 SM11.29 can be used to interro
gate whether the relevant SELECAN bus slave (valve terminal)
is currently active or inactive. A system flag is available for
each node number (= station number).
SM11.01 for node number 1
SM11.02 for node number 2, etc.