Logix5000 Controllers General Instructions - SLAC Confluence

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582 ASCII Serial Port <strong>Instructions</strong> (ABL, ACB, ACL, AHL, ARD, ARL, AWA, AWT)Execution:Condition Relay Ladder Action Structured Text Actionprescan The rung-condition-out is set to false. No action taken.rung-condition-in is false The rung-condition-out is set to false. narung-condition-in is true The instruction executes.naThe rung-condition-out is set to true.EnableIn is set na EnableIn is always set.The instruction executes.instruction execution The instruction clears the specified instructions and buffer(s).postscan The rung-condition-out is set to false. No action taken.Example:When the controller enters Run mode, clear the buffer and theASCII queue.Relay LadderS:FSACLASCII Clear BufferChannel 0Clear Serial Port Read 1Clear Serial Port Write 1Structured Textosri_1.InputBit := S:FS;OSRI(osri_1);IF (osri_1.OutputBit) THENEND_IF;ACL(0,0,1);Publication 1756-RM003I-EN-P - January 2007
ASCII Serial Port <strong>Instructions</strong> (ABL, ACB, ACL, AHL, ARD, ARL, AWA, AWT) 583ASCII Handshake Lines(AHL)The AHL instruction obtains the status of control lines and turns on oroff the DTR and RTS signals.Operands:Relay LadderAHLASCII Handshake LinesChannel ?AND Mask ???OR Mask ???SerialPort Control ?Channel Status(Decimal) ?ENDNEROperand Type Format EnterChannel DINT immediate 0ANDMask DINT immediatetagRefer to the description.tagORMask DINT immediatetagSerial Port Control SERIAL_PORT_CONTROL tag tag that controls the operationChannel Status (Decimal) DINT immediate 0Structured TextDuring execution, displays the status of the control lines.For the Status Of This Control Examine This Bit:LineCTS 0RTS 1DSR 2DCD 3DTR 4Received the XOFF character 5AHL(Channel,ANDMask,ORMask,SerialPortControl);The operands are the same as those for the relay ladderAHL instruction. However, you specify the Channel Status value byaccessing the .POS member of the SERIAL_PORT_CONTROL structure,rather than by including the value in the operand list.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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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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632 ASCII Conversion Instructions (
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634 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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