Connecting I/O Devices - Omron CJ2 User Manual

5 Installation
5-3-5

Connecting I/O Devices

Input Devices
Use the following information for reference when selecting or connecting input devices.
DC Input Units
The following types of DC input devices can be connected.
Contact output
Two-wire DC output
NPN open-collector output
NPN current output
Current
regulator
PNP current output
Voltage output
• The circuit below should NOT be used for I/O devices having a voltage output.
Voltage output
5-32
IN
DC Input Unit
COM
IN
DC Input Unit
Sensor
COM
Power
Supply
Sensor
Power
Supply
IN
Output
DC Input Unit
7 mA
COM
0 V
DC Input Unit
Output
IN
Sensor
7 mA
COM
Power
0 V
Supply
Sensor
Power
DC Input Unit
Supply
IN
Output
7 mA
COM
0 V
COM
Output
IN
DC Input Unit
Sensor
0 V
Power
Supply
Sensor
Power
DC Input Unit
Supply
Output
IN
0 V
COM
CJ2 CPU Unit Hardware User's Manual