Safety Considerations Guide for Trident v2 Systems - TUV ...

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viii Preface Abbreviations Used The TriStation 1131 Developer’s Workbench is hereafter called TriStation 1131 software. The following list provides full names for abbreviations of safety terms used in this guide. BPCS Basic process control system ESD Emergency shutdown HAZOP Hazard and operability study MOC Management of change MTBF Mean time between failure PES Programmable electronic system PFDavg Average probability of failure to perform design function on demand PHA Process hazard analysis PSM Process safety management RMP Risk management program RRF Risk reduction factor SFF Safe failure fraction SIL Safety integrity level SIS Safety-instrumented system SOV Solenoid-operated valve SRS Safety requirements specification SV Safety (relief) valve Product and Training Information To obtain information about Invensys products and in-house and on-site training, see the Invensys website or contact your regional customer center. Web Site Technical Support http://www.iom.invensys.com Customers in the U.S. and Canada can obtain technical support from the Invensys Global Customer Support (GCS) Center at the numbers below. International customers should contact their regional Triconex support office. Requests for support are prioritized as follows: • Emergency requests are given the highest priority • Requests from participants in the System Watch Agreement (SWA) and customers with purchase order or charge card authorization are given next priority Safety Considerations Guide for Trident v2 Systems
• All other requests are handled on a time-available basis Preface ix If you require emergency or immediate response and are not an SWA participant, you may incur a charge. Please have a purchase order or credit card available for billing. Telephone Fax Toll-free number 866-746-6477, or Toll number 508-549-2424 (outside U.S.) Toll number 508-549-4999 Web Site http://support.ips.invensys.com (registration required) Safety Considerations Guide for Trident v2 Systems
Page 1 and 2: Trident v2 Systems Safety Considera
Page 3 and 4: Contents Preface vii Summary of Sec
Page 5 and 6: Contents v Partitioned Processes. .
Page 7: Preface This guide provides informa
Page 11 and 12: 1 Safety Concepts Overview 2 Hazard
Page 13 and 14: Protection Layers Methods that prov
Page 15 and 16: Hazard and Risk Analysis Hazard and
Page 17 and 18: Sample SIL Calculation Hazard and R
Page 19 and 20: Safety Life Cycle Model Hazard and
Page 21 and 22: Hazard and Risk Analysis 11 • Eac
Page 23 and 24: CAN/CSA-C22.2 No. 61010-1-04 Safety
Page 25 and 26: 2 Application Guidelines Overview 1
Page 27 and 28: General Guidelines This section des
Page 29 and 30: General Guidelines 19 Safety Measur
Page 31 and 32: Emergency Shutdown Systems The safe
Page 33 and 34: Safety-Shutdown Guidelines for Tric
Page 35 and 36: Guidelines for Triconex Controllers
Page 43 and 44: 3 Fault Management Overview 34 Syst
Page 45 and 46: System Diagnostics System Diagnosti
Page 47 and 48: Operating Modes Each input or outpu
Page 49 and 50: Analog Output (AO) Modules Module D
Page 51 and 52: Calculation for Diagnostic Fault Re
Page 53 and 54: External Communication Module Diagn
Page 55 and 56: 4 Application Development Developme
Page 57 and 58: Array Index Errors Infinite Loops D
Page 59 and 60:
Setting Scan Time 49 application. T
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Sample Safety-Shutdown Programs Sam
Page 63 and 64:
Sample Safety-Shutdown Programs 53
Page 65 and 66:
When Some I/O Modules Are Safety-Cr
Page 67 and 68:
Sample Safety-Shutdown Programs 57
Page 69 and 70:
Partitioned Processes Sample Safety
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Alarm Usage Alarm Usage 61 To imple
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A Triconex Peer-to-Peer Communicati
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Data Transfer Time Data Transfer Ti
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Data Transfer Time 67 A typical dat
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Examples of Peer-to-Peer Applicatio
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B HART Communication Overview 72 HA
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2008-04-01 Automation, Software and
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2008-04-01 HART Position Paper from
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2008-04-01 A possible impact to the
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2008-04-01 HART Position Paper from
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C Safety-Critical Function Blocks O
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SYS_CRITICAL_IO Accumulates the sta
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Library Trident and Tri-GP (TRDLIB)
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END_IF ; PREVIOUS_RESET := RESET ;
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Output Parameters (continued) Name
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SYS_SHUTDOWN 91 * the safety system
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ALARM_DISABLED_POINTS := MPX.POINTS
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Example For shutdown examples, see
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A abbreviations, list of viii actua
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message errors, external communicat
Page 112:
Invensys Operations Management 5601
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