Logix5000 Controllers General Instructions - SLAC Confluence

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132 Timer and Counter <strong>Instructions</strong> (TON, TOF, RTO, TONR, TOFR, RTOR, CTU, CTD, CTUD, RES)Input Parameter Data Type DescriptionCDEnable BOOL Enable down count. When input toggles from clear to set, accumulator counts down by one.Default is cleared.PRE DINT Counter preset value. This is the value the accumulated value must reach before DN is set.Valid = any integerDefault is 0.Reset BOOL Request to reset the timer. When set, the counter resets.Default is cleared.Output Parameter Data Type DescriptionEnableOut BOOL The instruction produced a valid result.ACC DINT Accumulated value.CU BOOL Count up enabled.CD BOOL Count down enabled.DN BOOL Counting done. Set when accumulated value is greater than or equal to preset.OV BOOL Counter overflow. Indicates the counter exceeded the upper limit of 2,147,483,647.The counter then rolls over to −2,147,483,648 and begins counting down again.UN BOOL Counter underflow. Indicates the counter exceeded the lower limit of −2,147,483,648.The counter then rolls over to 2,147,483,647 and begins counting down again.DescriptionWhen enabled and CUEnable is set, the CTUD instructions incrementsthe counter by one. When enabled and CDEnable is set, the CTUDinstruction decrements the counter by one.Both the CUEnable and CDEnable input parameters can both betoggled during the same scan. The instruction executes the count upprior to the count down.Publication 1756-RM003I-EN-P - January 2007
Timer and Counter <strong>Instructions</strong> (TON, TOF, RTO, TONR, TOFR, RTOR, CTU, CTD, CTUD, RES) 133Counting UpCUEnablecount-up enable bit (CU)count-up done bit (DN)presetcounter accumulated value (ACC)16636Counting DownCDEnablecount-down enable bit (CD)count-down done bit (DN)counter accumulated value (ACC)preset16637When disabled, the CTUD instruction retains its accumulated value.Set the Reset input parameter of the FBD_COUNTER structure to resetthe instruction.Arithmetic Status Flags:Fault Conditions:not affectednonePublication 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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182 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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332 Array (File)/Misc. Instructions
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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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