Omron CP1H-X40D - Page 455

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Analog I/O Units Section 7-4
Using Analog I/O
Writing Set Data and
Reading A/D Converted
Values
Writing D/A Conversion
Data
Note Word (n+1) can be used for either the set data or the analog output conversion
value.
Connect and wire the Unit.
Create a ladder program.
• 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 outputs: 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.
• Wire to analog I/O devices.
• Write set data to output words.
MOV(021)
Ladder program
Set data
Word (n+1)
Word (m+1)
Word (m+2)
CPU Unit Analog I/O Unit
• Writes the set data.
• Reads the converted
values.
Analog input 0
converted value
Analog input 1
converted value
“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.
Analog devices
• Temperature sensor
• Pressure sensor
• Speed sensor
• Flow sensor
• Voltage/current meter
• Other
MOV(021)
Ladder program
Word (n+1)
CPU Unit Analog I/O Unit
(See note.)
Writes the conversion
values.
Analog output
conversion value
“n” is the last output word allocated to the CPU
Unit or previous Expansion Unit or Expansion I/O
Unit.
Analog devices
• Adjustment equipment
• Servo Controller
• Variable speed device
• Recorder
• Other