Logix5000 Controllers General Instructions - SLAC Confluence

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502 Special <strong>Instructions</strong> (FBC, DDT, DTR, PID)Mnemonic: Data Type Description.DB REAL deadband engineering units.SO REAL set output %.MAXO REAL maximum output limit (% of output).MINO REAL minimum output limit (% of output).UPD REAL loop update time (seconds).PV REAL scaled PV value.ERR REAL scaled error value.OUT REAL output %.PVH REAL process variable high alarm limit.PVL REAL process variable low alarm limit.DVP REAL positive deviation alarm limit.DVN REAL negative deviation alarm limit.PVDB REAL process variable alarm deadband.DVDB REAL deviation alarm deadband.MAXI REAL maximum PV value (unscaled input).MINI REAL minimum PV value (unscaled input).TIE REAL tieback value for manual control.MAXCV REAL maximum CV value (corresponding to 100%).MINCV REAL minimum CV value (corresponding to 0%).MINTIE REAL minimum tieback value (corresponding to 100%).MAXTIE REAL maximum tieback value (corresponding to 0%)Publication 1756-RM003I-EN-P - January 2007
Special <strong>Instructions</strong> (FBC, DDT, DTR, PID) 503Mnemonic: Data Type Description.DATA REAL[17] The .DATA member stores:Element: Description.DATA[0] integral accumulation.DATA[1] derivative smoothing temporary value.DATA[2] previous .PV value.DATA[3] previous .ERR value.DATA[4] previous valid .SP value.DATA[5] percent scaling constant.DATA[6] .PV scaling constant.DATA[7] derivative scaling constant.DATA[8] previous .KP value.DATA[9] previous .KI value.DATA[10] previous .KD value.DATA[11] dependent gain .KP.DATA[12] dependent gain .KI.DATA[13] dependent gain .KD.DATA[14] previous .CV value.DATA[15] .CV descaling constant.DATA[16] tieback descaling constant.EN BOOL enabled.CT BOOL cascade type (0=slave; 1=master).CL BOOL cascade loop (0=no; 1=yes).PVT BOOL process variable tracking (0=no; 1=yes).DOE BOOL derivative of (0=PV; 1=error).SWM BOOL software manual mode (0=no-auto; 1=yes- sw manual).CA BOOL control action (0 means E=SP-PV; 1 means E=PV-SP).MO BOOL station mode (0=automatic; 1=manual).PE BOOL PID equation (0=independent; 1=dependent).NDF BOOL no derivative smoothing(0=derivative smoothing filter enabled; 1=derivative smoothing filter disabled).NOBC BOOL no bias back calculation(0=bias back calculation enabled; 1=bias back calculation disabled).NOZC BOOL no zero crossing deadband(0=deadband is zero crossing; 1=deadband is not zero crossing).INI BOOL PID initialized (0=no; 1=yes).SPOR BOOL setpoint out of range (0=no; 1=yes).OLL BOOL CV is below minimum output limit (0=no; 1=yes).OLH BOOL CV is above maximum output limit (0=no; 1=yes)Publication 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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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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552 Advanced Math Instructions (LN,
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554 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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