3-1
Section
Analog I/O Units
189
Wiring for Analog Outputs
Analog device
with voltage
input
Analog
I/O
Unit
Analog device
with current
input
Analog
I/O
Unit
+
–
V OUT
I OUT
COM
+
–
V OUT
I OUT
COM
Note
1. Use shielded twisted-pair cables, but do not connect the shield.
2. When an input is not being used, short the + and – terminals.
3. Separate wiring from power lines (AC power supply lines, high-voltage
lines, etc.)
4. When there is noise in the power supply line, install a noise filter on the input
section and the Power Supply Unit.
CPM2C-MAD11 Internal Circuits
Analog Inputs
Analog Outputs
Analog ground
Input 0
Input 1
Analog ground
Output
Internal circuits
510 k
Ω
510 k
Ω
510 k
Ω
510 k
Ω
250
Ω
250
Ω
0–
0+
1+
1+
Internal circuits
–
V+
I+
AG
NC
NC
CPM2C-MAD11 Terminal Arrangements
Analog Input Terminals
Analog input 0 +
Analog input 0 –
Analog input 1 +
Analog input 1 –
Analog ground
Analog Output Terminals
Analog voltage output
Output common
Analog current output
Not used
Not used
IN
0 +
0 –
1 +
1 –
AG
OUT
V+
–
I+
NC
NC
Analog Input Wiring
Analog
output
device
Analog
I/O Unit
+
+
–
–
Analog Output Wiring
Analog
input device
with voltage
input
Analog
I/O Unit
Analog
I/O Unit
V+
+
–
–
I+
+
–
–
Analog
input device
with current
input
