Multiply (MUL)

When enabled, the MUL instruction and the operator '*' multiplies Source A with Source B.
Available Languages
Ladder Diagram
Ladder Diagram_Multiply (MUL)_v1
Operands
IMPORTANT: Unexpected operation may occur if:
  • Output tag operands are overwritten
  • Members of a structure operand are overwritten
  • Except when specified, structure operands are shared by multiple instructions.
There are data conversion rules for mixing numeric data types within an instruction. See Data conversions.
Ladder Diagram
Operand
Data Type
Format
Description
Source A
SINT
INT
DINT
LINT
USINT
UINT
UDINT
ULINT
REAL
LREAL
immediate
tag
Value of the multiplicand.
Source B
SINT
INT
DINT
LINT
USINT
UINT
UDINT
ULINT
REAL
LREAL
immediate
tag
Value of the multiplier.
Dest
SINT
INT
DINT
LINT
USINT
UINT
UDINT
ULINT
REAL
LREAL
tag
Tag to store the result of the instruction.
Affects Math Status Flags
Major/Minor Faults
None specific to this instruction. See Index through arrays for array-indexing faults.
Execution
Ladder Diagram
Condition/State
Action Taken
Prescan
N/A
Rung-condition-in is false
Set Rung-condition-out to Rung-condition-in
Rung-condition-in is true
Set Rung-condition-out to Rung-condition-in
Dest = Source A x Source B
Postscan
N/A
Examples
Ladder Diagram
FTStudio-MUL-LD-EX-V1
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