Delta Electronics DUP-B Series User Manual page 331

Chapter 3 Creating and Editing Screens
Add a value of $4 to $2 and store the value in $6 (this is a floating point operation of
signed 32-bit data).
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FSUB (Floating Subtraction)
Equation
Var1 = FSUB (Var2, Var3)
Explanation
Perform the subtraction of Var2 and Var3, and store the subtraction result in Var1.
Remark
This is the operation of signed 32-bit data.

The calculation result can be stored as signed DWORD. When the data exceeds

the length of designated unit, the data out of range will be discarded.
Var1 can be internal memory only. Var2 and Var3 can be internal memory or

constant.
Example
Subtract a value of 1.0 from $0 and store the value in $0 (this is a floating point
operation of signed 32-bit data).
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Revision May, 2010