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High-speed Multifunction Boards
User Manual, Ver. 1.0, Jan 2020, PMH-032-10 Page 18
2.6
Digital Input/Output
The DIO signals, DO<0..15> and DI<0..15> are referenced to DI.COM and EXT.GND. The figure shows
DI<0..15> configured for Digital Input and DO<0..15> configured for Digital Output.
Digital Input wiring diagram
Digital
Input/Counter
Readback as 1
Readback as 0
Sink
+10 ~ +30 VDC
OPEN or <4 VDC
3K
DI.COM
DIx
-
+
To other
channels
3K
DI.COM
DIx
-
+
To other
channels
Source
+10 ~ +30 VDC
OPEN or <4 VDC
3K
DI.COM
DIx
+
-
To other
channels
3K
DI.COM
DIx
+
-
To other
channels
Figure 1: digital input wiring
Digital Output wiring diagram
Output
Type
ON State
Readback as 1
OFF State
Readback as 0
Driver
Relay
EXT.PWR
EXT.GND
DOx
+
-
EXT.PWR
EXT.GND
DOx
+
-
Resistance
Load
EXT.PWR
EXT.GND
DOx
+
-
+
-
EXT.PWR
EXT.GND
DOx
+
-
+
-
Figure 2: digital output wiring