Omron CP1E-E14SDR-A User Manual page 196

2
Wire to analog I/O devices.
(1) Wiring internal circuits of the CPU Unit
• Analog Inputs
Analog ground
(2) Wiring analog output devices to the Analog I/O Unit
Analog +
device
with
−
voltage
output
(3) Wiring analog input devices to the Analog I/O Unit
V OUT
Analog
I OUT
I/O Unit
COM
Precautions for Correct Use Precautions for Correct Use
• Do not connect the shield when using shielded twisted-pair cables.
• When an input is not being used, short V IN and I IN to COM terminals.
• Separate wiring from power lines (AC power supply lines, high-voltage lines, etc.)
• When there is noise in the power supply line, install a noise filter on the input section and the
power supply terminals.
CP1E CPU Unit Hardware User's Manual(W479)
8 Using Expansion Units and Expansion I/O Units
510 kΩ
250 Ω
510 kΩ
510 kΩ
250 Ω
510 kΩ
2-core shielded
twisted-pair cable
V IN
Analog
I IN
I/O Unit
COM
FG
2-core shielded
twisted-pair cable
Analog
+
device
with
−
voltage
input
FG
• Analog Outputs
Input 0
V IN0
I IN0
COM0 (−)
Input 1
V IN1
I IN1
COM1 (−)
AG
Analog ground
2-core shielded
twisted-pair cable
Analog
+
device
with
−
current
output
2-core shielded
twisted-pair cable
V OUT
Analog
I OUT
I/O Unit
COM
Output
V OUT
COM (−)
I OUT
NC
NC
V IN
Analog
I IN
I/O Unit
COM
FG
+ Analog
device
with
−
current
input
FG
8
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