X20 system modules • Digital output modules • X20DO4331
1130
X20 system User's Manual 3.10
4.15.10.4 Status LEDs
Figure
LED
Color
Status
Description
Off
Module supply not connected
Single flash
Reset mode
Blinking
PREOPERATIONAL mode
On
RUN mode
r
Green
Flickering (ap-
prox. 10 Hz)
Module is in OSP state
Off
Module supply not connected or everything OK
e
Red
Single flash
Warning/Error on an I/O channel. Level monitoring for digital outputs has been
triggered.
e + r
Red on / Green single flash
Invalid firmware
1 - 4
Orange
Output status of the corresponding digital output
Table 360: Status LEDs
4.15.10.5 Pinout
1
X
20
D
O
4
33
1
2
DO 1
+24 VDC
GND
DO 2
+24 VDC
GND
GND
GND
DO 3
+24 VDC
DO 4
+24 VDC
3 4
3 4
r
e
Figure 337: Pinout
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