Omron CP1E Series - Flow of Processing; Analog Input Units

9 Using Expansion Units and Expansion I/O Units
9-6
CP1E CPU Unit Hardware User’s Manual(W479)
z Writing Set Data and Reading A/D Conversion Values
1 Connect the Analog Input Unit to the CPU Unit.
9-1-4 Flow of Processing
1
• Connect Analog Input Units.
• Wire to analog output devices.
2
• Write set data to output words (n+1, n+2).
• Set use of inputs.
• Select input signals using range codes.
• Set use of averaging.
• Read A/D conversion values from input words (m+1 to m+4).
• For current inputs, confirm that there is no open circuit.
Connect and wire Units.
Create a ladder program.
CPU Unit
MOV
Set data (inputs 1, 2)
Set data (inputs 3, 4)
Analog input 3 conversion value
Analog input 4 conversion value
Analog Input Unit
Ladder program
Analog input 1 conversion value
Analog input 2 conversion value
Analog output devices
· Temperature sensor
· Pressure sensor
· Speed sensor
· Flow sensor
· Voltage/current meter
· Other devices
Writes the set data (use
of inputs, averaging,
range codes).
Reads the conversion
value.
The last input word allocated to the
CPU Unit or already connected
Expansion (I/O) Unit is m and the
last output word is n.
Word n+1
Word n+2
Word m+1
Word m+2
Word m+3
Word m+4
CH
IIN1 IIN3
IIN2
VIN1
VIN2
VIN3COM1
COM2
IIN4
VIN4
COM4
COM3
IN
NC
AG
CP1W-AD041
Analog Input Unit
CP1E CPU Unit