Interbus-Specific Leds - Festo CPX-M-FB20 Manual

3. Diagnostics and error handling

3.2.3 Interbus-specific LEDs

UL (U Load) – Logic supply for bus interface
LED (green) Procedure
ON
LED
OFF
illuminates
ON
OFF
LED is off
RC (Remote Bus Check) – Fieldbus connection
LED (green) Procedure
ON
LED
OFF
illuminates
ON
OFF
LED is off
BA (Bus Active) – Remote bus active
LED (green) Procedure
ON
LED
OFF
illuminates
ON
OFF
LED flashes
ON
OFF
LED is off
3-10
Status
No error. Logic voltage
applied
The logic supply for the bus
interface is not present
Status
Incoming remote bus
connection OK
Incoming remote bus
connection faulty
Status
Data transmission on
Interbus active, Interbus to
RUN
– No data transmission on
the Interbus
– Module
initiates ID cycles
No data transmission on
the Interbus
Meaning/error handling
–
Servicing required, if necessary re-
place bus node
Meaning/error handling
–
Check incoming fieldbus connection.
Meaning/error handling
–
•
Eliminate bus fault
•
Reset module
•
Acknowledge error
•
Start data transmission
Module not in status "Run".
Festo P.BE-CPX-FB20/21-EN en 1202a