Safety Considerations Guide for Triconex General ... - ICEWeb

More documents

Recommendations

Info

80 Appendix C Safety-Critical Function Blocks Overview This appendix describes the function blocks intended for use in safety-critical applications and shows the Structured Text code for the following function blocks: • SYS_CRITICAL_IO on page 81 • SYS_SHUTDOWN on page 86 • SYS_VOTE_MODE on page 92 Safety Considerations Guide for Triconex General Purpose v2 Systems
SYS_CRITICAL_IO 81 SYS_CRITICAL_IO Accumulates the status of safety-critical I/O modules. Syntax MY_SYS_CRITICAL_IO( CI:=b1, RESET:=b2, IOP:=n1, SLOT:=n2, APP:=n3, RELAY_OK:=b3 ) ; Input Parameters Name Data Type Description CI BOOL Enables SYS_CRITICAL_IO. RESET BOOL Resets. IOP DINT The IOP (0–15). SLOT DINT The slot number (0–56). APP DINT The application number (1-2). RELAY_OK BOOL The relay is energized and not stuck. Output Parameters Name Data Type Description CO BOOL True if SYS_CRITICAL_IO executes successfully. TMR BOOL Three channels are operating without faults on all critical I/O module. GE_DUAL BOOL At least two channels are operating without faults on all critical I/O module. GE_SINGLE BOOL At least one channel is operating without faults on all critical I/O module. NO_VOTER_FLTS BOOL No voter faults detected on critical modules. ERROR_NUM DINT Error Number: 0 = No error. –1 = The IOP is invalid. –2 = The slot is not valid. –3 = The module is not configured. –4 = The module is the wrong type. Description The SYS_CRITICAL_IO function block accumulates the status of safety-critical I/O modules. Safety Considerations Guide for Triconex General Purpose v2 Systems
Page 1 and 2:
Triconex General Purpose v2 Systems
Page 3 and 4:
Contents Preface vii Summary of Sec
Page 5 and 6:
Contents v Partitioned Processes. .
Page 7 and 8:
Preface This guide provides informa
Page 9 and 10:
Preface ix • All other requests a
Page 11 and 12:
1 Safety Concepts Overview 2 Hazard
Page 13 and 14:
Overview 3 Protection Layers Method
Page 15 and 16:
Hazard and Risk Analysis 5 Hazard a
Page 17 and 18:
Hazard and Risk Analysis 7 Sample S
Page 19 and 20:
Hazard and Risk Analysis 9 Safety L
Page 21 and 22:
Hazard and Risk Analysis 11 • Eac
Page 23 and 24:
Safety Standards 13 CAN/CSA-C22.2 N
Page 25 and 26:
2 Application Guidelines Overview 1
Page 27 and 28:
General Guidelines 17 General Guide
Page 29 and 30:
Guidelines for Triconex Controllers
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40: Guidelines for Triconex Controllers
Page 41 and 42: 3 Fault Management Overview 32 Syst
Page 43 and 44: System Diagnostics 33 System Diagno
Page 45 and 46: Operating Modes 35 Operating Modes
Page 47 and 48: Module Diagnostics 37 Analog Output
Page 49 and 50: Module Diagnostics 39 Calculation f
Page 51 and 52: Module Diagnostics 41 External Comm
Page 53 and 54: 4 Application Development Developme
Page 55 and 56: Development Guidelines 45 Array Ind
Page 57 and 58: Setting Scan Time 47 application. T
Page 59 and 60: Sample Safety-Shutdown Programs 49
Page 69 and 70: Alarm Usage 59 Alarm Usage To imple
Page 71 and 72: A Triconex Peer-to-Peer Communicati
Page 73 and 74: Data Transfer Time 63 Data Transfer
Page 75 and 76: Data Transfer Time 65 A typical dat
Page 77 and 78: Examples of Peer-to-Peer Applicatio
Page 79 and 80: B HART Communication Overview 70 HA
Page 81 and 82: HART Position Paper from TÜV Rhein
Page 89: C Safety-Critical Function Blocks O
Page 93 and 94: SYS_CRITICAL_IO 83 Library Trident
Page 95 and 96: SYS_CRITICAL_IO 85 END_IF ; PREVIOU
Page 97 and 98: SYS_SHUTDOWN 87 Output Parameters (
Page 99 and 100: SYS_SHUTDOWN 89 * the safety system
Page 101 and 102: SYS_SHUTDOWN 91 ALARM_DISABLED_POIN
Page 103 and 104: SYS_VOTE_MODE 93 Example For shutdo
Page 105 and 106: Index A abbreviations, list of viii
Page 107 and 108: Index 97 N NFPA 85 12 O operating m
Page 110: Invensys Operations Management 5601
show all

Safety Considerations Guide for Triconex General ... - ICEWeb

Create successful ePaper yourself

Delete template?

Save as template?