Omron CJ - REFERENCE MANUAL 02-2010 Reference Manual page 709

3. Instructions
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
whenever 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
Point B
S (unsigned binary)
Reverse scaling can be used, for example, to convert (reverse scale) 1 to 5 V (0000 to 0FA0
hexadecimal) to 0300 to 0000, respectively, as shown in the following diagram.
3
R
Point A
Point B
CS/CJ/NSJ Series Instructions Reference Manual (W474) 673