Omron CP1H CPU Operation Manual page 445

Analog I/O Units
Creating a Ladder
Program
Analog Output Wiring
Voltage Outputs
Analog I/O Unit
0 V
Current Outputs
Analog I/O Unit
0 V
Analog I/O Wiring Example
Using analog output as a voltage output
I OUT V IN1
COM
VOUT
Note (1) For analog outputs it is possible to use both voltage outputs and current
outputs at the same time, but the total current output must not exceed
21 mA.
(2) Use 2-core shielded twisted-pair cables.
(3) Wire away from power lines (AC power supply wires, power lines, etc.)
(4) When an input is not being used, short V IN and I IN to the COM terminal.
(5) Use crimp terminals. (Tighten terminals to a torque of 0.5 N·m.)
(6) When using current inputs, short V
(7) When there is noise in the power supply line, install a noise filter on the
input section and the power supply terminals.
I/O Allocation
Two input words and one output word are allocated to the Analog I/O Unit,
starting from the next word following the last allocated word on the CPU Unit
or previous Expansion Unit or Expansion I/O Unit.
2-core shielded
twisted-pair cable
+
VOUT
I OUT
−
COM
F G
VOUT
2-core shielded
twisted-pair cable
+
I OUT
−
COM
F G
COM1 I IN2
COM2
I IN1 V IN2
Voltage output (+)
Common (−)
IN
Section 7-4
Analog
input
device
voltage
input
Analog
input
device
current
input
to I .
IN
411