AADvance Safety Manual - Tuv-fs.com

AADvance Safety ManualModules for SIL3 Fail-safe I/O, Fault Tolerant ProcessorPositionModule TypeI/P A 9401/2 Digital Input Module, 24V c, 8/16 Channel +9802 Digital Input TA, 16 Channel, Dual or9431/2 Analogue Input Module, 8/16 channel +9832 Analogue Input TA, 16 Channel, DualCPU A &CPU B2 x 9110 Processor Module, 9100 Base Unit, 9300 BaseUnitO/P A 9451 Digital Output Module, 24V dc, 8 Channel +9851 Digital Output TA, 24V dc, 8 Channel, SimplexSIL3 Fault Tolerant I/O ArchitecturesA SIL3 fault tolerant processor and I/O is achieved by dual input and output moduleconfigurations with dual or triple processor modules. The processor modules operatein 1oo2D under no fault conditions, degrade to 1oo1D on the detection of the firstfault in either module and fail-safe when there are faults on both modules.Similarly the input modules operate in 1oo2D under non faulted conditions and 1oo1Don detection of the first fault in either module and will fail-safe when there are faults onboth modules.For de-energize to trip operation, the output modules operate in 2oo2D under nofault conditions, degrade to 1oo1D on detection of the first fault in either module andfail-safe when there are faults on both modules.For energize to action operation, the output modules operate in 1oo2D under no faultconditions, degrade to 1oo1D on the detection of the first fault in either module andfail-safe when there are faults on both modules.4-8 Document number 553630 Issue 7: February 2010