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

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30 Guidelines for Tricon Controllers• Maintenance instructions outlined in the Tricon Planning & InstallationGuide should be followed.• If degradation to dual mode occurs, continued operation without repairshould be limited to 1500 hours (two months).• If degradation to single mode occurs, continued operation without repairshould be limited to one hour.• The GATENB function allows external hosts to write selected aliasedvariables even when the remote mode is false. A network using theGATENB function should be thoroughly validated to ensure that only theintended aliased variable range is used.Additional Fire and Gas GuidelinesProject Change and Control• Analog input cards with current loop terminations should be used to readdigital inputs. Opens and shorts in the wiring to the field devices should bedetectable. The Triconex library function, LINEMNTR, should be used tosimplify program development.• A controller should be powered by two independent sources.• If outputs are normally de-energized, a Supervised Digital Output Moduleshould be used to verify proper connection to the final control element andto check the load and the wiring for potential shorts.• If degradation to dual mode or single mode occurs, repairs should be timelyand limits for maximum time in degraded mode should not be imposed toensure maximum availability.A change to a project, however minor, should comply with the guidelines of yourorganization’s change control committee. The following steps are recommended:1 Generate a change request defining all changes and reasons for changes, thenobtain approval for the changes from the Safety Change Control Committee(SCCC).2 Develop a specification for changes, including a test specification, then obtainapproval for the specification from the SCCC.3 Make the appropriate changes to the project, including those related to design,operation, or maintenance documentation.Tricon Safety Considerations Guide
Guidelines for Tricon Controllers 314 To verify that the configuration in the controller matches the last downloadedconfiguration, use the Upload and Verify command on the Control Panel. Fordetails, see section “Upload and Verify” in the TriStation 1131 Developer'sGuide for Tricon Systems.5 Compare the configuration in your project with the configuration that was lastdownloaded to the controller by printing the Configuration Differences reportfrom the Configuration editor. For details, see section “Compare to LastDownload” in the TriStation 1131 Developer's Guide for Tricon Systems.6 Print all logic elements and verify that the changes to networks within eachelement do not affect other sections of the application.7 Test the changes according to the test specification by using the EmulatorControl Panel.8 Write a test report.9 Review and audit all changes and test results with the SCCC.10 When approved by the SCCC, download the changes to the controller.• You may make minor changes on-line only if the changes are absolutelynecessary and are tested thoroughly.• To enable a Download Change command, select the EnableProgramming option in the Set Programming Mode dialog box on theControl Panel if it is not already selected.Note Changing the operating mode to PROGRAM should generate an alarm toremind the operator to return the operating mode to run as soon as possible afterthe Download Change. For more information, see section “Programming PermittedAlarm” on page 68.11 Save the downloaded project in TriStation and back up the project.12 Archive two copies of the project file and all associated documentation.Chapter 2Application Guidelines
Page 1 and 2: TriconVersion 9Safety Consideration
Page 3: AcknowledgementTriconex acknowledge
Page 6 and 7: viRelated DocumentsRelated Document
Page 8 and 9: viiiHow to Contact TriconexHow to C
Page 10: xTrainingFor Turbomachinery Systems
Page 13 and 14: 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 45: 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 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
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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