Festo CTEU-DN, Description, Functions And Maintenance

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5. Diagnostics
5-8
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
5.2.4 Status display MNS-LED
MNS – Module status/network status
(Combined Module/Network Status)
LED display Status/significance Error handling
LED illuminated
green
– Normal operating status (“online”)
– Communication with
fieldbus/network is OK
–
LED flashes
green (1 Hz)
– Fieldbus/network communication
available (“online”), but not con-
figured
•
Check/configure fieldbus/network
communication
LED illuminated
red
– No fieldbus/network communication
(not available, “offline”, failed or in-
valid bus address or baud rate)
– No voltage supply to bus
•
Fieldbus/network is offline:
Establish connection
•
Fieldbus/network error:
Check connection to fieldbus/net-
work; connecting cable, plug con-
nector, signal transmission, bus
node, PLC/scanner
•
Check the setting of the DIL switches
•
Check voltage supply to bus
Section 2.2.3
LED is flashing
red
– Communication error:
Fieldbus/network communication
disrupted, bus timeout detected or
no voltage supply to bus
•
Fieldbus/network error:
Check connection to fieldbus/net-
work; connecting cable, plug con-
nector, signal transmission, bus
node, PLC/scanner
•
Check the setting of the DIL switches
•
Check voltage supply to bus
Section 2.2.3
LED is off
– No fieldbus/network connection: not
“online”, MAC-ID test “DUB_MAC_ID”
did not run successfully or no power
supply to bus
•
Establish/check fieldbus/network
connection
•
Correct MAC-ID setting
•
Check the setting of the DIL switches
•
Check voltage supply to bus
Section 2.2.3
Tab. 5/5: Status displays of the network-specific “MNS” LED