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

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76 TR_CRITICAL_IO Function Block4 Read the output values:– CO– TMR– GE_DUAL– GE_SINGLE– NO_VOTER_FAULTSThe output values are an accumulation of the status of all critical I/O modules.For example, the output called TMR is true if all of the critical modules in thesystem are in TMR mode.InputsParameter Type DescriptionCI BOOL Control In—enablesoperationINIT BOOL InitializeCHASSIS DINT Chassis number (1–15)SLOT DINT Physical slot number mustbe odd (1, 3...15)APP DINT Application number (1–2)RELAY_OK BOOL Relay is energized and notstuckOutputs CO BOOL Critical I/O Control OutTMR BOOL Three channels areoperating without faults onevery critical I/O moduleGE_DUAL BOOL At least two channels areoperating without faults onevery critical I/O moduleGE_SINGLE BOOL At least one channel isoperating without faults onevery critical I/O moduleNO_VOTER_FLTS BOOL No voter faults on criticalI/O modulesTricon Safety Considerations Guide
TR_CRITICAL_IO Function Block 77Parameter Type DescriptionOutputs ERROR DINT Error Number:0 = No error-1 = Slot is not odd or notnumbered 1–15-2 = Invalid chassis or slot-3 = Module not configured-4 = Reserved (not used)-5 = Invalid applicationnumber-6 = Not initializedRuntime Error Code Return Value ConditionEBADPARAMBad parameterNote If there is a programming error, then CO is false and the error number isnon-zero. For more information, see ERROR above.App Relay_OK DescriptionRELAY True A single fault (even a voter fault) degrades themode to dual. The relay provides a third channelfor shutdown so that if an output voter fails,there remain two independent channels (therelay and other output voter channel) that cande-energize the output.RELAY False A voter fault degrades the mode to single. ADE-ENERGIZED —non-voter fault degrades the mode to dual.AttributeApplication TypeProgramming UsageCEM FeatureUsageSafety, ControlN/AN/ALibraryTriconAppendix APeer-to-Peer Communication
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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
Page 41 and 42: Guidelines for Tricon Controllers 2
Page 53 and 54: CHAPTER 3Fault ManagementThis chapt
Page 55 and 56: System Diagnostics 39System Diagnos
Page 57 and 58: Operating Modes 41Operating ModesEa
Page 59 and 60: Module Diagnostics 43Module Diagnos
Page 61 and 62: Module Diagnostics 45Relay Output M
Page 63 and 64: Module Diagnostics 47System Attribu
Page 65 and 66: CHAPTER 4Application DevelopmentThi
Page 67 and 68: Important TriStation Commands 51Imp
Page 69 and 70: Setting Scan Time 53Setting Scan Ti
Page 71 and 72: Sample Safety-Shutdown Programs 55S
Page 73 and 74: Sample Safety-Shutdown Programs 57I
Page 75 and 76: Sample Safety-Shutdown Programs 59A
Page 77 and 78: Sample Safety-Shutdown Programs 61P
Page 79 and 80: Sample Safety-Shutdown Programs 63O
Page 81 and 82: Sample Safety-Shutdown Programs 65D
Page 83 and 84: Sample Safety-Shutdown Programs 67P
Page 85 and 86: APPENDIX APeer-to-Peer Communicatio
Page 87 and 88: Data Transfer Time 71ParameterTS =S
Page 89 and 90: Examples of Peer-to-Peer Applicatio
Page 91: TR_CRITICAL_IO Function Block 75TR_
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
Page 103 and 104: TR_SHUTDOWN Function Block 87* Exam
Page 105 and 106: TR_SHUTDOWN Function Block 89TIMER_
Page 107 and 108: TR_VOTE_MODE Function Block 91Param
Page 109 and 110: TR_VOTE_MODE Function Block 93Appen
Page 111 and 112: APPENDIX BShutdown Function BlocksT
Page 113 and 114: TR_CRITICAL_IO Function Block 974 R
Page 115 and 116: TR_CRITICAL_IO Function Block 99Rel
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 and 126: TR_SHUTDOWN Function Block 109IF CI
Page 127 and 128: TR_VOTE_MODE Function Block 111TR_V
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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