Status Display Mns-Led - Festo CTEU-CO Manual, Functions And Maintenance

2. Diagnosis

2.2.4 Status display MNS-LED

MNS (network status)
LED Procedure
ON
OFF
LED
illuminates red
ON
OFF
LED flashes
red
ON
OFF
LED is off
Tab. 2/4: Status displays of the fieldbus-specific "MNS" LED
Festo P.BE-CTEU-CO-OP+MAINT-EN en 1101NH
Status
– Fieldbus communication is
not available or has failed.
– Voltage supply to / via the
fieldbus has failed.
Communication error - fieldbus
communication is defective
Normal operating status/no
communication error on the
fieldbus
Meaning/error elimination
•
Fieldbus is offline
•
CAN error
•
CAN short circuit
•
Check connection to network
•
Check the setting of the DIL
switches
•
Check the voltage supply to /
via the fieldbus
•
Timeout ascertained
•
Check connection to network
•
Diagnosis is possible
•
Access to connected devices is
possible through PDO/SDO
access
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