L9E_MULIF: Integer x Floating Point Multiplication
(Original Document)
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Naming
Name in LL984 Editor
Function Block Name
name of legacy 984 instruction
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Function Description
The L9E_MULIF DFB multiplies an integer operand 1 by a floating point operand 2 and stores the result in an array.
Representation
Parameters
Input Pin
Name
Data Type
Address Range
Meaning
Top
ENABLE
BOOL
–
ON = initiates integer x floating point operation
Node
Node Type
Name
Data Type
Address Range
Meaning
Top
IN
VALUE1
ARRAY[1...2] OF UINT
%MW
VALUE1 stores the double precision integer value to be multiplied by floating point value.
Middle
IN/OUT
RESULT
ARRAY[1...4] OF UINT
%MW
The floating point value to be multiplied in the operation is stored in word 1 and 2.
The product of the multiplication is posted in word 3 and 4. The product is posted in floating point format.
Output Pin
Name
Data Type
Address Range
Meaning
Top
OUT
BOOL
–
ON = operation successful