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Symbol Math Instructions Section 3-11
The Carry Flag (CY) is turned ON, so the actual number is –97AE06D3.
Because the content of D00101 and D00100 is negative, CY is used to turn
ON CIO 002100 to indicate this.
3-11-11SIGNED BINARY SUBTRACT WITH CARRY: –C(412)
Purpose Subtracts 4-digit (single-word) hexadecimal data and/or constants with the
Carry Flag (CY).
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
00000000
651 F92D8
R+1: D00101
3D60EA791
CY
R+1: D00100
−
Su+1: D00101 Su: D00100
Subtraction at 2
R+1: D00101
D00101 D00100
3D60EA79
651 F92
D
1
CY
R+1: D00100
1
CIO 0201 CIO 0200
20F5 5A 0
8
−
Su+1: Su:
Final Subtraction Result
Mi+1: Mi:
−C(412)
R
Mi
Su
Mi: Minuend word
Su: Subtrahend word
R: Result word
Variations Executed Each Cycle for ON Condition –C(412)
Executed Once for Upward Differentiation @–C(412)
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
Area Mi Su R
CIO Area CIO 0000 to CIO 6143
Work Area W000 to W511
Holding Bit Area H000 to H511
Auxiliary Bit Area A000 to A959 A448 to A959
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