Safety Considerations Guide for Trident v2 Systems - TUV ...
Safety Considerations Guide for Trident v2 Systems - TUV ... Safety Considerations Guide for Trident v2 Systems - TUV ...
100 Index safety life cycle model 9 safety life cycles, PES steps 10–11 safety measures for external communication 18–20 safety methods 2 safety system boundary 30 safety systems, guidelines 17–20 safety-critical fault 37 safety-critical modules defining function blocks 58 guidelines 22 shutdown programs for all I/O 51–54 shutdown programs for some I/O 55–57 safety-instrumented systems, See SISs safety-shutdown guidelines 23 networks 23 programs for all safety-critical I/O modules 51–54 programs for some safety-critical I/O modules 55–57 scan overrun 50 scan surplus 48, 49 scan time actual 49 defined 49 guidelines 23 maximum exceeded 47 requested 49 usage 61 with response times 23, 61 semaphore flags 43 semaphores 43 sequence number safety measure 18 serial communication maintenance overrides 27 operating requirements 29 shutdown programs for all safety-critical I/O modules 51–54 programs for some safety-critical I/O modules 55–57 safety 23 SYS_CRITICAL_IO function block 83 SYS_SHUTDOWN function block 88 SYS_VOTE_MODE function block 94 system emergencies 21 SILs calculation examples 7 determining 6, 8 factors 4 fire and gas guidelines 26 guidelines 25–26 SIS, designing 10 SISs, factors 4 solid-state relay output modules alarms 40 Safety Considerations Guide for Trident v2 Systems solid-state relay output modules (continued) diagnostics 40 specifications, safety requirements 10 standards 6 application-specific 12, 13 general safety 12 status, safety-critical I/O modules 83 SYS_CRITICAL_IO function block 83–87 SYS_SHUTDOWN function block 88–93 SYS_VOTE_MODE function block 94–96 system architecture 34 attributes as alarms 43 attributes of main processors 43 burner management 21 diagnostics 35 emergency shutdown 21 fire and gas 21 system availability 6 T technical support viii threats, external communication 18 time expectation safety measure 19 time stamp safety measure 18 TMR architecture 34 TR_SEND function blocks 24, 68–70 TR_URCV function blocks 68–70 training viii Tribus main processors 42 system architecture 34 Triconex contact information viii TriStation 1131 commands 48–49 TÜV Rheinland certification 16 types of faults 36 U unacceptable delay error 18 unintended repetition error 18 V VAR_IN_OUT variables 46 Verify Last Download to the Controller command 48 voter diagnostics, disabled output 23
- Page 59 and 60: Setting Scan Time 49 application. T
- Page 61 and 62: 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
- Page 71 and 72: Alarm Usage Alarm Usage 61 To imple
- Page 73 and 74: A Triconex Peer-to-Peer Communicati
- Page 75 and 76: Data Transfer Time Data Transfer Ti
- Page 77 and 78: Data Transfer Time 67 A typical dat
- Page 79 and 80: Examples of Peer-to-Peer Applicatio
- Page 81 and 82: B HART Communication Overview 72 HA
- Page 83 and 84: 2008-04-01 Automation, Software and
- Page 85 and 86: 2008-04-01 HART Position Paper from
- Page 87 and 88: 2008-04-01 A possible impact to the
- Page 89 and 90: 2008-04-01 HART Position Paper from
- Page 91 and 92: C Safety-Critical Function Blocks O
- Page 93 and 94: SYS_CRITICAL_IO Accumulates the sta
- Page 95 and 96: Library Trident and Tri-GP (TRDLIB)
- Page 97 and 98: END_IF ; PREVIOUS_RESET := RESET ;
- Page 99 and 100: Output Parameters (continued) Name
- Page 101 and 102: SYS_SHUTDOWN 91 * the safety system
- Page 103 and 104: ALARM_DISABLED_POINTS := MPX.POINTS
- Page 105 and 106: Example For shutdown examples, see
- Page 107 and 108: A abbreviations, list of viii actua
- Page 109: message errors, external communicat
100 Index<br />
safety life cycle model 9<br />
safety life cycles, PES steps 10–11<br />
safety measures <strong>for</strong> external communication 18–20<br />
safety methods 2<br />
safety system boundary 30<br />
safety systems, guidelines 17–20<br />
safety-critical fault 37<br />
safety-critical modules<br />
defining function blocks 58<br />
guidelines 22<br />
shutdown programs <strong>for</strong> all I/O 51–54<br />
shutdown programs <strong>for</strong> some I/O 55–57<br />
safety-instrumented systems, See SISs<br />
safety-shutdown<br />
guidelines 23<br />
networks 23<br />
programs <strong>for</strong> all safety-critical I/O modules 51–54<br />
programs <strong>for</strong> some safety-critical I/O modules 55–57<br />
scan overrun 50<br />
scan surplus 48, 49<br />
scan time<br />
actual 49<br />
defined 49<br />
guidelines 23<br />
maximum exceeded 47<br />
requested 49<br />
usage 61<br />
with response times 23, 61<br />
semaphore flags 43<br />
semaphores 43<br />
sequence number safety measure 18<br />
serial communication<br />
maintenance overrides 27<br />
operating requirements 29<br />
shutdown<br />
programs <strong>for</strong> all safety-critical I/O modules 51–54<br />
programs <strong>for</strong> some safety-critical I/O modules 55–57<br />
safety 23<br />
SYS_CRITICAL_IO function block 83<br />
SYS_SHUTDOWN function block 88<br />
SYS_VOTE_MODE function block 94<br />
system emergencies 21<br />
SILs<br />
calculation examples 7<br />
determining 6, 8<br />
factors 4<br />
fire and gas guidelines 26<br />
guidelines 25–26<br />
SIS, designing 10<br />
SISs, factors 4<br />
solid-state relay output modules<br />
alarms 40<br />
<strong>Safety</strong> <strong>Considerations</strong> <strong>Guide</strong> <strong>for</strong> <strong>Trident</strong> <strong>v2</strong> <strong>Systems</strong><br />
solid-state relay output modules (continued)<br />
diagnostics 40<br />
specifications, safety requirements 10<br />
standards 6<br />
application-specific 12, 13<br />
general safety 12<br />
status, safety-critical I/O modules 83<br />
SYS_CRITICAL_IO function block 83–87<br />
SYS_SHUTDOWN function block 88–93<br />
SYS_VOTE_MODE function block 94–96<br />
system<br />
architecture 34<br />
attributes as alarms 43<br />
attributes of main processors 43<br />
burner management 21<br />
diagnostics 35<br />
emergency shutdown 21<br />
fire and gas 21<br />
system availability 6<br />
T<br />
technical support viii<br />
threats, external communication 18<br />
time expectation safety measure 19<br />
time stamp safety measure 18<br />
TMR architecture 34<br />
TR_SEND function blocks 24, 68–70<br />
TR_URCV function blocks 68–70<br />
training viii<br />
Tribus<br />
main processors 42<br />
system architecture 34<br />
Triconex contact in<strong>for</strong>mation viii<br />
TriStation 1131 commands 48–49<br />
TÜV Rheinland certification 16<br />
types of faults 36<br />
U<br />
unacceptable delay error 18<br />
unintended repetition error 18<br />
V<br />
VAR_IN_OUT variables 46<br />
Verify Last Download to the Controller command 48<br />
voter diagnostics, disabled output 23
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