Omron CPM1A Operation Manual page 80

Wiring and Connections
Input Wiring Example
COM
COM
24 VDC at
0.2 A output
External power supply:
24 VDC at 200 mA/10-point and 20-point I/O type CPU Units
24 VDC at 300 mA/30-point and 40-point I/O type CPU Units
(Applicable to CPU Units with a power supply of 100 to 240 VAC.)
WARNING
!
An AC-type CPU Unit is shown. DC-type CPU Units don't have power supply
outputs.
01 03 05 07
02 04 06
00
0 CH
10 CH
+ 00 01
–
COM COM COM
When the 24-VDC output (service power supply to the PC) is overloaded or
short-circuited, the voltage may drop and result in the outputs being turned OFF.
External safety measures must be provided to ensure safety in the system. Not
providing proper safety measures may result in serious accidents.
09 11 01 03
08 10 02
00
1 CH
02 04 05 07
03 COM 06 COM
Section 3-4
Input devices
05
04
11 CH
00 02
03
01
57