1766-RM001A-EN-P MicroLogix 1400 Programmable Controllers ...

Math Instructions 235CPT Instruction Valid Addressing Modes and File TypesFor definitions of the terms used in this table see Using the Instruction Descriptions on page 92.Data Files Function Files (1)Address Mode (3)Address LevelParameterOISBT, C, RNFSTLMG, PDRI/RIXPLSRTCHSCPTOX, PWMXSTIEIIBHIMMILCDCS - CommsIOS - I/ODLS - Data Log (2)DirectIndirectImmediateInt16Immediate Int32Immediate FloatBitWordDouble WordElementFloatDestination • • • • • • • • • • • • •(1) PTOX and PWMX files are only for use with MicroLogix 1400 BXB or BXBA unit.(2) The Data Log Status file can only be used for the following math instructions: ADD, SUB, MUL, DIV, NEG, and SCP.(3) See Important note about indirect addressing.IMPORTANTYou cannot use indirect addressing with: S, MG, PD, RTC, HSC, PTOX,PWMX, STI, EII, BHI, MMI, CS, IOS, and DLS files.Instruction OperationWhen the rung is true, this instruction shall compute the expression andplace the result in Destination.Note that it takes on the attributes of the instruction which it is computing.The following instructions can be included in the expression section ofCPT instruction.CPT Instruction OperationSub InstructionsAdditionSubtractionMultiplicationDivisionSquare RootNegateLogical NotLogical Exclusive OrLogical Inclusive OrLogical AndSymbol+ (ADD)- (SUB)* (MUL)/ (DIV)SQR- (NEG)NOTXORORANDPublication 1766-RM001A-EN-P - October 2008