3. Diagnostics
3-6
Festo P.BE-CTEU-PB-OP+MAINT-EN en 1208NH English
3.2.3 Status disp lay X1-/X2-LEDs
X1 or X2
1)
- Internal communication between bus node and device 1 or 2
1)
LED Process Status Meaning/error elimination
LED illumin-
ated green
ON
OFF
Normal operating status Device is connected correctly to the
bus node.
LED flashing
green
ON
OFF
Device diagnostics are run-
ning and/or diagnostic
data are on hand.
Data c onnection between bus node
and device is built up.
• Device diagnostics can be read via
fieldbus communication (if activ-
ated via DIL switches on the bus
node)
LED illumin-
ated red
ON
OFF
Device is connected cor-
rectly to the bus node, but
internal communication is
faulty.
A connected device was re-
mov ed after commissioni ng
• Check I-Port connection: cables,
plug connectors, signal
transmission (error counter
overrun)
• Restart the bus node (by switching
the power off -> on)
LED flashing
red
ON
OFF
Incorrect device connec-
ted:
– Device detected that is
notI-Portcompatible
– Non-configured device
detected
If X1 and X2 are flashing
red simultaneously:
– No device connected to
the bus node
– Configuration erro r
• Use an I-Port-compatible device
(e.g. appropriate valve terminal)
from Festo
• Connect at least one device
• Restart the bus node (by switching
the power off -> on)
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