Maple Systems MAPware-7000 - Manual (Page 50)

MAPware-7000 Ladder Logic Guide 42
1010-1041 rev. 00
Instruction 24- Subtraction
Expression:
Space Requirement: 1 line x 6 column Location Requirement: Middle, Right rail
Function:
When the input is ON, the data of B is subtracted from the data of A, and the result is stored in
C. If the result is greater than 32767, the upper limit value 32767 is stored in C, and the output is
turned ON. If the result is smaller than -32768, the lower limit value -32768 is stored in C, and
the output is turned ON.
Execution Condition:
Input Operation Output
OFF No execution OFF
ON Execution (normal) OFF
Execution (overflow or underflow condition) ON
Operand:
Coil or Bit Register Constant Index
Name X Y B S T. C. M
X
W Y
W B
W S
W
T C D I J K
M
W
A Minuend √ √ √ √ √ √ √ √ √ √ √ √
B Subtrahend √ √ √ √ √ √ √ √ √ √ √ √
C Difference √ √ √ √ √ √ √ √ √ √
Example:
When B005 is ON, the constant data 2500 is subtracted from the data of D0200, and the result is
stored in BW50.
If the data of D0200 is 15000, the result 12500 is stored in BW50, and B010 is turned OFF.