Safety Considerations Guide, Tricon v9.0 - Tuv-fs.com

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110 TR_SHUTDOWN Function BlockTIMER_RUNNING := OPERATING AND NOT TMR ;(* Output time remaining to shutdown. *)IF NOT OPERATING THENTIME_LEFT := T#0s ;ELSIF TMR THENTIME_LEFT := T#999999d ;ELSIF GE_DUAL ORMAX_TIME_DUAL-DUAL_TIME.ET MAX_SCAN_TIME ;ALARM_DISABLED_POINTS := PROG.POINTS_DISABLED > 0 ;ELSEU := ReportBadParam(0) ;(* Programming error. *)OPERATING := FALSE ;TMR := FALSE ;GE_DUAL := FALSE ;GE_SINGLE := FALSE ;DUAL := FALSE ;SINGL := FALSE ;ZERO := FALSE ;TIMER_RUNNING := FALSE ;TIME_LEFT := T#0S;ALARM_PROGRAMMING_PERMITTED := TRUE ;ALARM_REMOTE_ACCESS := TRUE ;ALARM_RESPONSE_TIME := TRUE ;ALARM_DISABLED_POINTS := TRUE ;END_IF ;END_IF ;END_FUNCTION_BLOCKTricon Safety Considerations Guide
TR_VOTE_MODE Function Block 111TR_VOTE_MODE Function BlockConverts Redundancy StatusThe TR_VOTE_MODE function block provides an easy way to convertredundancy status from one voting mode to another, as shown in the followingtruth table.TMR GE_DUAL GE_SINGLE TMR DUAL SINGL ZEROT T T T F F FF T T F T F FF F T F F T FF F F F F F TOther 1F F F F1. If there is an error in the inputs, then CO is false, the mode outputs are false, and the functionblock reports a bad parameter error (EBADPARAM).Note To save memory and reduce scan time when using this function block,create a single instance of the function block in your program and invoke itmultiple times. Do not use the same instance more than once in a network.Parameter Type DescriptionInputs CI BOOL Control In—enables operationIf CI=FALSE, then CO=FALSE—there is nochange in the output valueIf CI=TRUE and ERROR_NUM=0, then CO=TRUEIN_TMR BOOL Three critical I/O channels operatingGE_DUAL BOOL Two or more critical I/O channels operatingGE_SINGLE BOOL One or more critical I/O channels operatingOutputs CO BOOL Control Out—indicates completion of theoperation with no errorsAppendix BShutdown Function Blocks
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TriconVersion 9Safety Consideration
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AcknowledgementTriconex acknowledge
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viRelated DocumentsRelated Document
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viiiHow to Contact TriconexHow to C
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xTrainingFor Turbomachinery Systems
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xiCONTENTSAbout This Guide ........
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xiiiAnalog Input Module Alarms ....
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CHAPTER 1Safety ConceptsThis chapte
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Safety Overview 3Protection LayersT
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Hazard and Risk Analysis 5Hazard an
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Hazard and Risk Analysis 7Completio
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Hazard and Risk Analysis 9Equation
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Hazard and Risk Analysis 11Flowchar
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Hazard and Risk Analysis 13Some key
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Safety Standards 15Safety Standards
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Safety Standards 17Application-Spec
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CHAPTER 2Application GuidelinesThis
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General Guidelines 21• Under cert
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Guidelines for Tricon Controllers 2
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CHAPTER 3Fault ManagementThis chapt
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System Diagnostics 39System Diagnos
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Operating Modes 41Operating ModesEa
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Module Diagnostics 43Module Diagnos
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Module Diagnostics 45Relay Output M
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Module Diagnostics 47System Attribu
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CHAPTER 4Application DevelopmentThi
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Important TriStation Commands 51Imp
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Setting Scan Time 53Setting Scan Ti
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Sample Safety-Shutdown Programs 55S
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Sample Safety-Shutdown Programs 57I
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Page 77 and 78: Sample Safety-Shutdown Programs 61P
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Page 87 and 88: Data Transfer Time 71ParameterTS =S
Page 89 and 90: Examples of Peer-to-Peer Applicatio
Page 91 and 92: TR_CRITICAL_IO Function Block 75TR_
Page 93 and 94: TR_CRITICAL_IO Function Block 77Par
Page 95 and 96: TR_CRITICAL_IO Function Block 79Str
Page 97 and 98: TR_CRITICAL_IO Function Block 81CO
Page 99 and 100: TR_SHUTDOWN Function Block 83Parame
Page 101 and 102: TR_SHUTDOWN Function Block 85Relate
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Page 107 and 108: TR_VOTE_MODE Function Block 91Param
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Page 111 and 112: APPENDIX BShutdown Function BlocksT
Page 113 and 114: TR_CRITICAL_IO Function Block 974 R
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Page 117 and 118: TR_CRITICAL_IO Function Block 101*
Page 119 and 120: TR_SHUTDOWN Function Block 103TR_SH
Page 121 and 122: TR_SHUTDOWN Function Block 105Param
Page 123 and 124: TR_SHUTDOWN Function Block 107Struc
Page 125: TR_SHUTDOWN Function Block 109IF CI
Page 129 and 130: TR_VOTE_MODE Function Block 113Stru
Page 131 and 132: Index 115IndexAactual scan time 53a
Page 133 and 134: Index 117Modbus master functions 25
Page 135 and 136: Index 119timescan 53TMR architectur
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