Interbus-Specific Leds - Festo CPX-FB6 Manual

3. Diagnostics and error handling

3.2.3 Interbus-specific LEDs

UL (U load) – logic supply for bus interface
LED (green) Process
ON
OFF
LED illuminated
ON
OFF
LED not
illuminated
RC (remote bus check) – fieldbus connection
LED (green) Process
ON
OFF
LED illuminated
ON
OFF
LED not
illuminated
BA (bus active) – remote bus active
LED (green) Process
ON
OFF
LED illuminated
ON
OFF
LED flashes
ON
OFF
LED not
illuminated
Festo P.BE-CPX-FB6-EN en 1207c
Status
No error. Logic voltage ap-
plied
Logic supply for bus inter-
face not applied
Status
Incoming remote bus con-
nection OK
Incoming remote bus con-
nection faulty
Status
Data transmission on Inter-
bus active, Interbus to RUN
No data transmission on
the Interbus.
Interface module initiates
ID cycles.
No data transmission on
the Interbus.
Significance / error handling
–
Servicing required, if necessary re-
place bus node
Significance / error handling
–
Check incoming field bus connection.
Significance / error handling
–
•
Eliminate bus error.
•
Reset interface module.
•
Acknowledge error.
•
Start data transmission.
Interface module not in "run" status.
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