402
Analog Input Units Section 7-2
■ Example:Scaling analog input values
When a 0 to 10V voltage is input to the analog input word (CIO 3) of CP1W-
AD042 as 0 to 12,000, convert the value into a value between 0 and 24,000
and output the result to D200.
Data Memory Settings
Ladder Program
Descriptions of APR Instruction
Setting Address Data
Control word D100 #0800
Unscaled minimum value (0) D101 &0
Scaled minimum value (0) D102 &0
Unscaled maximum value (12,000) D103 &12,000
Scaled maximum value (24,000) D104 &24,000
12,000
(10V)
0
(0V)
24,000
Data input to Analog Input Unit
Unscaled: 0 to 12,000
Scaled
value
(0 to
24,000)
(Data in CIO3)
(D200)
0
Always ON Flag
P_On
Use APR instruction for scaling.
APR(069)
D100
D200
3
APR
C
D
S
C:Control word
D:Result word
S:Source word
X1X0
Y1
Unscaled data
Scaled
data
S
Input data
D
Scaled
result
Y
0
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