Toshiba PROSEC T1-16S PLC User's Manual - CTi Automation

7. Instructions
FUN 032 D− Double-word subtraction
Expression
Input −[ A+1⋅A D− B+1⋅B → C+1⋅C ]− Output
148 T1-16S User’s Manual
6F3B0253
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 occurred) ON
Operand
Name Device Register Constant Index
X Y R S T. C. XWYWRWSW T C D I J K
A Minuend √ √ √ √ √ √ √ √
B Subtrahend √ √ √ √ √ √ √ √
C Difference √ √ √ √ √ √
Example
When R005 is ON, the double-word data of RW25⋅RW24 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 RW25⋅RW24 is 80000, the result
1500000 is stored in D0103⋅D0102, and R010 is turned OFF. (No overflow/underflow)
D0101⋅D0100 1580000
RW25⋅RW24 80000
− D0103⋅D0102 1500000 R010 is OFF
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