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Chapter 6 Input and Output Specification
6-4
4) Example of external devices.
To connect with external device of DC output type into DC input module, wire depending on the type of the external device
as shown.
External device
Input
Contact points
NPN open collector output type
NPN current output type
PNP current output type
Relay
IN
COM
Sensor
IN
COM +
Power fo
r
sensor
Output
0V
+
IN
COM
-
Power for
sensor
Output
0V
+
Voltage output type
IN
COM +
Output
0V
+
Power for
sensor
7mA
Power for
sensor
IN
COM
+
Output
0V
+
+
Constant
] current
Same power for sensor
and input
7mA
7mA
7mA