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Data Control Instructions Section 3-17
Reverse Scaling
Reverse scaling can also be used by setting As < Bs and Ar > Br. The follow-
ing relationship will result.
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 fol-
lowing diagram.
3-17-8 SCALING 2: SCL2(486)
Purpose Converts signed binary data into signed BCD data according to the specified
linear function. An offset can be input in defining the linear function.
Ladder Symbol
Variations
Applicable Program Areas
S (unsigned binary)
Point B
Point A
R (unsigned BCD)
R
Point B
Point A
1 V
0000 Hex
5 V
0FA0 Hex
SCL2(486)
S
P1
R
S: Source word
P1: First parameter word
R: Result word
Variations Executed Each Cycle for ON Condition SCL2(486)
Executed Once for Upward Differentiation @SCL2(486)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
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