AADvance Safety Manual - Tuv-fs.com

AADvance Safety ManualSIL3 Fault Tolerant I/O Architectures .................................................................................................... 4-4SIL3 TMR Input and Processor, Fault Tolerant Output ..................................................................... 4-4Planned Certified Configurations................................................................................................................... 4-4Internal Diagnostics........................................................................................................................................... 4-4Chapter 5 AADvance Functional Safety System Implementation ....................... 5-4General Design Measures for Functional Safety......................................................................................... 5-4I/O Modules................................................................................................................................................... 5-4Energise to Action Configurations........................................................................................................... 5-4Controller Process Safety Time (PST).................................................................................................... 5-4Connection for a Common Fault Alarm ................................................................................................ 5-4Industrial Functional Safety Standards........................................................................................................... 5-4NFPA 85 Requirements.............................................................................................................................. 5-4EN 50156 ....................................................................................................................................................... 5-4NFPA 86 Requirements.............................................................................................................................. 5-4BS EN 54 Requirements............................................................................................................................. 5-4Field Configurations .......................................................................................................................................... 5-4Line Moitoring............................................................................................................................................... 5-4Digital Field Loop Circuits ......................................................................................................................... 5-4Analogue Field Loop Circuits.................................................................................................................... 5-4Sensor Configurations................................................................................................................................. 5-4Actuator Configurations............................................................................................................................. 5-4Calculations of Probability of Failure upon Demand,................................................................................ 5-4Processor Functional Safety Configuration.................................................................................................. 5-4Processor Safety Functions........................................................................................................................ 5-4Processor Module Access Port ................................................................................................................ 5-4I/O Module Safety Functions........................................................................................................................... 5-4Module Safety Related Parameters .......................................................................................................... 5-4I/O Module Process Safety Time.............................................................................................................. 5-4Input Module Safety Functions.................................................................................................................. 5-4Input Module Safety Accuracy .................................................................................................................. 5-4Output Module Safety Functions.............................................................................................................. 5-4Input and Output Forcing ................................................................................................................................ 5-4Maintenance Overrides .................................................................................................................................... 5-4Variable Bindings ................................................................................................................................................ 5-4Application Program Development ............................................................................................................... 5-4AADvance Workbench Configuration ................................................................................................... 5-4Language Selection....................................................................................................................................... 5-4Testing of New or Previously Untested Functions.............................................................................. 5-4Communications Interaction..................................................................................................................... 5-4Program Testing ........................................................................................................................................... 5-4On-line Modification.......................................................................................................................................... 5-4Physical Installation ............................................................................................................................................ 5-4Environmental Requirements.......................................................................................................................... 5-4viii Document number 553630 Issue 7: February 2010