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

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50 Development GuidelinesDevelopment GuidelinesTriStation Install CheckWhile developing an application, you should:• Use a dedicated PC that is not connected to a network.• Use a good virus checker.• Verify proper installation of TriStation 1131 using TriStation Install Check.You should run the TriStation Install Check program to verify that TriStation iscorrectly installed on your PC and that no associated files are corrupted. This isespecially helpful if applications besides TriStation 1131 reside on your PC. Formore information on the TriStation Install Check program, see the TriStation 1131Developer's Guide.Tricon Safety Considerations Guide
Important TriStation Commands 51Important TriStation CommandsDownload ChangeSeveral commands in TriStation 1131 Developer’s Workbench are of specialinterest when developing a safety application:• Download Change• Upload and Verify• Compare to Last DownloadThe Download Change command is a convenient means of making simplemodifications to an off-line system during application development.! WARNINGDownload Change is intended for off-line use during application development. Ifyou use Download Change to modify a safety-critical application that is runningon-line, you must exercise extreme caution because an error in the modifiedapplication or system configuration may cause a trip or unpredictable behavior.If you must make on-line changes to a controller, you should always follow theguidelines provided in TriStation 1131 Developer's Guide and fully understand therisks you are taking by using the Download Change command.Before a Download Change, use the Diagnostic Panel to verify that Scan Surplusis sufficient for the application and changes being made. As a rule, the value forScan Surplus should be at least 10% of Scan Time to accommodate newly addedelements. For more information on scan time, see “Setting Scan Time” on page 53.! CAUTIONDo not attempt a Download Change if you have a negative Scan Surplus. First,adjust Scan Time to make the surplus value greater than or equal to zero.For more information on the Download Change command, see the TriStation 1131Developer's Guide.Chapter 4Application Development
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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 ........
Page 15 and 16: xiiiAnalog Input Module Alarms ....
Page 17 and 18: CHAPTER 1Safety ConceptsThis chapte
Page 19 and 20: Safety Overview 3Protection LayersT
Page 21 and 22: Hazard and Risk Analysis 5Hazard an
Page 23 and 24: Hazard and Risk Analysis 7Completio
Page 25 and 26: Hazard and Risk Analysis 9Equation
Page 27 and 28: Hazard and Risk Analysis 11Flowchar
Page 29 and 30: Hazard and Risk Analysis 13Some key
Page 31 and 32: Safety Standards 15Safety Standards
Page 33 and 34: Safety Standards 17Application-Spec
Page 35 and 36: CHAPTER 2Application GuidelinesThis
Page 37 and 38: General Guidelines 21• Under cert
Page 39 and 40: 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: CHAPTER 4Application DevelopmentThi
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 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
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
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TR_CRITICAL_IO Function Block 101*
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TR_SHUTDOWN Function Block 103TR_SH
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TR_SHUTDOWN Function Block 105Param
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TR_SHUTDOWN Function Block 107Struc
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TR_SHUTDOWN Function Block 109IF CI
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TR_VOTE_MODE Function Block 111TR_V
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TR_VOTE_MODE Function Block 113Stru
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Index 115IndexAactual scan time 53a
Page 133 and 134:
Index 117Modbus master functions 25
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Index 119timescan 53TMR architectur
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