Omron SYSMAC CS Series Instruction & Reference Manual page 629
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Also See for SYSMAC CS Series:
- Operation manual (841 pages) ,
- Programming manual (303 pages) ,
- Quick start manual (4 pages)
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• SCL2(486) can be used to scale the results of analog signal conversion values from Analog Input
Units according to user-defined scale parameters. For example, if a 1 to 5-V input to an Analog Input
Unit is input to memory as 0000 to 0FA0 hexadecimal, the value in memory can be scaled to –100 to
200°C using SCL2(486).
• SCL2(486) converts signed binary to signed BCD. Negative values can thus be handled directly for
S. The result of scaling in R and the Carry Flag can also be used to output negative values for the
scaling result.
Example Programming
Scaling 1 to 5-V Analog Input to 0 to 300
In the following example, it is assumed that an analog signal from 1 to 5 V is converted and input to
CIO 205 as 0000 to 0FA0 hexadecimal. SCL2(486) is used to convert (scale) the value in CIO 205 to a
value between 0000 and 0300 BCD.
When CIO 0.00 is ON, the contents of CIO 205 is scaled using the linear function defined by ΔX
(0FA0), ΔY (0300), and the offset (0). These values are contained in D100 to D102, and the result is
output to D200.
0.00
P1
R
CS/CJ/NSJ Series Instructions Reference Manual (W474)
D100
Contents of R (D200)
D200
1068Hex
(ΔX)
P1:
D100
P1+1:
D101
P1+2:
D102
Contents of S (CIO 205)
3. Instructions
3
Offset
ΔX
ΔY
595
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