Logix5000 Controllers General Instructions - SLAC Confluence

Compute/Math Instructions (CPT, ADD, SUB, MUL, DIV, MOD, SQR, SQRT, NEG, ABS) 261FBD_MATH StructureInput Parameter Data Type DescriptionEnableIn BOOL Enable input. If cleared, the instruction does not execute and outputs are not updated.Default is set.Source A REAL Value of the multiplicand.Valid = any floatSource B REAL Value of the multiplier.Valid = any floatOutput Parameter Data Type DescriptionEnableOut BOOL The instruction produced a valid result.Dest REAL Result of the math instruction. Arithmetic status flags are set for this output.Description:Arithmetic Status Flags:Fault Conditions:The MUL instruction multiplies Source A with Source B and places theresult in the Destination.Arithmetic status flags are affected.noneExecution:Relay LadderConditionprescanrung-condition-in is falserung-condition-in is truepostscanActionThe rung-condition-out is set to false.The rung-condition-out is set to false.Destination = Source B x Source AThe rung-condition-out is set to true.The rung-condition-out is set to false.Publication 1756-RM003I-EN-P - January 2007