Logix5000 Controllers General Instructions - SLAC Confluence

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338 Array (File)/Misc. <strong>Instructions</strong> (FAL, FSC, COP, CPS, FLL, AVE, SRT, STD, SIZE)CONTROL StructureMnemonic Data Type Description.EN BOOL The enable bit indicates that the FAL instruction is enabled..DN BOOL The done bit is set when the instruction has operated on the last element (.POS = .LEN)..ER BOOL The error bit is set if the expression generates an overflow (S:V is set). The instruction stopsexecuting until the program clears the .ER bit. The .POS value contains the position of theelement that caused the overflow..LEN DINT The length specifies the number of elements in the array on which the FALinstruction operates..POS DINT The position contains the position of the current element that the instruction is accessing.Description:The FAL instruction performs the same operations on arrays as theCPT instruction performs on elements.The examples that start on page 9-344 show how to use the .POSvalue to step through an array. If a subscript in the expression of theDestination is out of range, the FAL instruction generates a major fault(type 4, code 20).Arithmetic Status Flags:Arithmetic status flags are affected.Fault Conditions:A Major Fault Will Occur If Fault Type Fault Codesubscript is out of range 4 20.POS < 0 or .LEN < 0 4 21Publication 1756-RM003I-EN-P - January 2007
Array (File)/Misc. <strong>Instructions</strong> (FAL, FSC, COP, CPS, FLL, AVE, SRT, STD, SIZE) 339Execution:ConditionprescanRelay Ladder ActionThe rung-condition-out is set to false.rung-condition-in is falseexamine .DN bit.DN bit = 0INC modenointernal bit is cleared.DN bit = 1yes.EN bit is cleared.EN bit is clearedALL modeno.LEN < 0 or.POS < 0yesmajor fault.ER bit is clearedyesno.POS = .POS + 1yes.LEN = 0.POS = 0yesnonono.POS < .LEN.POS = .POS - 1yes.DN bit is set.LEN > modeyesno.DN bit is setmode = .LENnumericmodepage 9-343rung-condition-out is set tofalseendPublication 1756-RM003I-EN-P - January 2007
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Logix5000Controllers GeneralInstruc
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Table of ContentsSummary of Changes
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Table of Contents 7Extended Error C
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Table of Contents 9Array (File)/Mis
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Table of Contents 11Set the deadban
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14 Table of ContentsPublication 175
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16 Summary of ChangesNotes:Publicat
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18 PrefacePurpose of This ManualThi
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20 PrefaceRelay ladder rung conditi
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22 PrefaceNotes:Publication 1756-RM
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24 Instruction LocatorInstruction:
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30 Instruction LocatorPublication 1
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32 Digital Alarm Instruction (ALMD)
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48 Analog Alarm Instruction (ALMA)A
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50 Analog Alarm Instruction (ALMA)S
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52 Analog Alarm Instruction (ALMA)I
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54 Analog Alarm Instruction (ALMA)I
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56 Analog Alarm Instruction (ALMA)O
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62 Analog Alarm Instruction (ALMA)E
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64 Analog Alarm Instruction (ALMA)E
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70 Bit Instructions (XIC, XIO, OTE,
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96 Timer and Counter Instructions (
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98 Timer and Counter Instructions (
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100 Timer and Counter Instructions
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140 Input/Output Instructions (MSG,
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206 Compare Instructions (CMP, EQU,
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248 Compute/Math Instructions (CPT,
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284 Move/Logical Instructions (MOV,
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286 Move/Logical Instructions (MOV,
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388 Array (File)/Shift Instructions
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422 Sequencer Instructions (SQI, SQ
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436 Program Control Instructions (J
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472 For/Break Instructions (FOR, FO
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480 Special Instructions (FBC, DDT,
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522 Trigonometric Instructions (SIN
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546 Advanced Math Instructions (LN,
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556 Math Conversion Instructions (D
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572 ASCII Serial Port Instructions
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606 ASCII String Instructions (CONC
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620 ASCII Conversion Instructions (
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636 Common AttributesInstructions e
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638 Common AttributesIf you use a S
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640 Common AttributesREAL to an int
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642 Function Block AttributesUse th
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644 Function Block AttributesOrder
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646 Function Block AttributesDo not
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648 Function Block AttributesCreate
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650 Function Block AttributesTiming
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652 Function Block AttributesCommon
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654 Function Block AttributesOvervi
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656 Function Block AttributesThe Pr
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658 Function Block AttributesProgra
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660 Structured Text ProgrammingTerm
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662 Structured Text ProgrammingThe
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664 Structured Text ProgrammingIn s
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666 Structured Text ProgrammingFor
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668 Structured Text ProgrammingUse
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670 Structured Text ProgrammingInst
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672 Structured Text ProgrammingIF..
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674 Structured Text ProgrammingExam
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676 Structured Text Programmingopti
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678 Structured Text ProgrammingFOR
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682 Structured Text ProgrammingThe
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684 Structured Text ProgrammingREPE
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688 Structured Text ProgrammingFor
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IndexAABL instruction 575ABS instru
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Index 693DEG 556FRD 565introduction
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Index 695sequencer 421serial port 5
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Index 697program/operator controlov
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Index 699timer on delay with reset
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Pub. Title/Type Logix5000 Controlle
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Rockwell AutomationSupportRockwell
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Logix5000 Controllers General Instructions - SLAC Confluence

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