Maple Systems MAPware-7000 - Manual (Page 53)

45 MAPware-7000 Ladder Logic Guide
1010-1041 rev. 00
Expression:
Space Requirement: 1 line x 6 column Location Requirement: Middle, Right rail
Function:
When the input is ON, the double-word data of B+1× B is subtracted from A+1× A, and the result
is stored in C+1× C. The data range is -2147483648 to 2147483647.
If the result is greater than 2147483647, the upper limit value 2147483647 is stored in C+1× C,
and the output is turned ON. If the result is smaller than -2147483648, the lower limit value -
2147483648 is stored in C+1× 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 double-word data of BW25×BW24 is subtracted from the double-word
data of D0101×D0100, and the result is stored in D0103×D0102.
If the data of D0101×D0100 is 1580000 and the data of BW25×BW24 is 80000, the result
1500000 is stored in D0103×D0102, and B010 is turned OFF. (No overflow/underflow).