Omron CP1L-EL20DR-D, Operation Manual

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Analog I/O Units Section 9-4
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