Omron CP1H-CPU - 05-2006 Operation Manual page 448

Analog I/O Units
Using Analog I/O
Reading Range Code
Settings and A/D
Conversion Data
Writing D/A Conversion
Data
Connect the Unit.
Set the I/O ranges.
Wire the analog I/O.
Program operation in
the ladder program.
CPU Unit
Ladder program
MOVE instruction
MOV(21)
Writes the range code.
Reads the converted
values.
"m" is the last input word and "n" is the last
output word allocated to the CPU Unit or
previous Expansion Unit or Expansion I/O Unit.
CPU Unit
Ladder program
MOVE instruction
MOV(21)
Writes the range code.
Writes the set value.
"n" is the last output word allocated to the CPU
Unit or previous Expansion Unit or Expansion I/O
Unit.
Connect the Analog I/O Unit.
Analog inputs: 0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC, –10 to
10 VDC, 0 to 20 mA, or 4 to 20 mA
Analog output: 1 to 5 VDC, 0 to 10 VDC, –10 to 10 VDC, 0 to
20 mA, or 4 to 20 mA
Set analog inputs as voltage or current inputs and set the
averaging function.
Connect analog I/O devices.
Write the range code.
Analog inputs: Read converted data.
Analog output: Write set values.
Analog I/O Unit
Analog I/O Unit
Section 7-4
Range code
Word n + 1
Analog input 0
Word m + 1
converted value
Analog input 1
Word m + 2
converted value
Analog devices
Temperature sensor
Pressure sensor
Speed sensor
Flow sensor
Voltage/current meter
Other
(See note.)
Range code
Word n + 1
Analog output set value
Analog devices
Adjustment equipment
Servo Controller
Variable speed device
Recorder
Other
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