Omron SYSMAC CP Series Instruction & Reference Manual page 315

In this example, values from 0000 to 00C8 hexadecimal will be converted to negative values. SCL(194),
however, can output only unsigned BCD values from 0000 to 9999, so 0000 BCD will be output when-
ever the contents of D0.00 is between 0000 and 00C8 hexadecimal.
Reverse Scaling
Reverse scaling can also be used by setting As < Bs and Ar > Br. The following relationship will result.
R (unsigned BCD)
Point A
Ar
Br
As
Reverse scaling can be used, for example, to convert (reverse scale) 1 to 5 V (0000 to 0FA0 hexadeci-
mal) to 0300 to 0000, respectively, as shown in the following diagram.
R
Point A
0300
0000
0000Hex
1V
CP1E CPU Unit Instructions Reference Manual(W483)
Point B
S (unsigned binary)
Bs
Point B
S
0FA0Hex
5V
2 Instructions
2
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