Flow Of Operation; Analog Input Units - Omron CP1E-E14SDR-A User Manual

8 Using Expansion Units and Expansion I/O Units
8-1-4

Flow of Operation

1
Connect and wire Units.
2
Create a ladder program.
Writing Set Data and Reading A/D Conversion Values
CPU Unit
Ladder program
MOV
Writes the set data (use
of inputs, averaging,
range codes).
Reads the conversion
value.
1
Connect the Analog Input Unit to the CPU Unit.
CP1E CPU Unit
8-6
• Connect Analog Input Units.
• Wire to analog output devices.
• 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.
Analog Input Unit
Set data (inputs 1, 2)
Word n+1
Word n+2 Set data (inputs 3, 4)
Word m+1 Analog input 1 conversion value
Word m+2
Analog input 2 conversion value
Word m+3
Analog input 3 conversion value
Word m+4 Analog input 4 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.
CP1W-AD041
Analog Input Unit
IN
CH
IIN1 VIN2 COM2 IIN3 VIN4 COM4 AG
VIN1 COM1 IIN2 VIN3 COM3 IIN4 NC
Analog output devices
· Temperature sensor
· Pressure sensor
· Speed sensor
· Flow sensor
· Voltage/current meter
· Other devices
CP1E CPU Unit Hardware User's Manual(W479)