Table Of Contents - ABB Triguard SC300E Safety Manual

Table of Contents

1 Glossary of Terms ............................................................................................................. 6
2 Introduction........................................................................................................................ 8
2.1 General Information........................................................................................................................ 8
2.2 Manual Organisation ...................................................................................................................... 8
2.3 Product Introduction and Overview................................................................................................ 8
2.3.1 The Triguard SC300E ................................................................................................................ 8
2.3.2 SC300E Functional Overview .................................................................................................... 9
2.3.3 Operating System..................................................................................................................... 10
2.3.4 Off-Line/Start-up Diagnostics ................................................................................................... 10
2.3.5 On-Line/Continuous Diagnostics ............................................................................................. 11
2.3.6 Verification................................................................................................................................ 11
2.3.7 Validation.................................................................................................................................. 11
3 Configuration Application Design .................................................................................. 12
3.1 Introduction ................................................................................................................................... 12
3.2 Assumptions ................................................................................................................................. 12
3.3 Safety Related Inputs and Outputs .............................................................................................. 12
3.3.1 Inputs ........................................................................................................................................ 13
3.3.2 Outputs ..................................................................................................................................... 15
3.4 Classification (SIL level) System Time Constraint ....................................................................... 16
3.4.1 Without System Time Constraint Dual Final Elements............................................................ 16
3.4.2 Without Time Constraint Dual Outputs .................................................................................... 18
3.4.3 Interposing Devices.................................................................................................................. 18
3.4.4 Systematic Software Faults...................................................................................................... 18
3.4.5 Process Fault Tolerant Time.................................................................................................... 18
3.5 Diagnostic Configuration .............................................................................................................. 19
3.5.1 Diagnostic Message Generation.............................................................................................. 19
3.5.2 Printed Messages..................................................................................................................... 19
3.5.3 Diagnostic LED's ...................................................................................................................... 19
3.5.4 Display System Diagnostics..................................................................................................... 19
3.5.5 Maintenance Workstations....................................................................................................... 19
3.5.6 Error Flags and Automatic Diagnostic Actions ........................................................................ 19
3.5.7 Monitor flag register.................................................................................................................. 23
3.5.8 I/O module dependant fault flags ............................................................................................. 23
3.5.9 Automatic Diagnostic Action .................................................................................................... 24
3.5.10 Without Time Constraint Configuration................................................................................ 24
3.5.11 With Time Constraint Configuration..................................................................................... 24
3.5.12 Long Process Time Constraint System ............................................................................... 24
3.5.13 Initialisation Flags................................................................................................................. 24
3.5.14 MPP A, MPP B, MPP C ....................................................................................................... 25
3.5.15 Power Supply Failures ......................................................................................................... 25
3.6 Application Software, Design, Verification and Validation ........................................................... 25
3.6.1 Non Safety Functions............................................................................................................... 25
3.6.2 Modularity and Version Control................................................................................................ 25
3.6.3 Discretes and Register Validation............................................................................................ 25
3.6.4 Power-Up Initialisation.............................................................................................................. 25
3.6.5 Application Logic Verification ................................................................................................... 26
3.6.6 Application Logic Validation ..................................................................................................... 26
3.6.7 Start-up Overrides .................................................................................................................... 26
3.6.8 System Acceptance Test ......................................................................................................... 26
3.6.9 Application Software Documentation....................................................................................... 26
3.6.10 Application Logic Driven External Triplicated Watchdog Timer .......................................... 26
3.6.11 Use of Triplicated Watchdog Timer with Remote Chassis.................................................. 27
3.7 TriBuild, Network Examples ......................................................................................................... 27
3.8 Environmental Functionality ......................................................................................................... 27
3.9 Security......................................................................................................................................... 27
3.10 System Power Supplies ............................................................................................................... 27
3.11 Field Sensors and Final Elements ............................................................................................... 27
Document Reference SS 0728
Issue 5 - September 2006