Safety Manual User Manual

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Document: 553630
ICSTT-RM446K-EN-P Issue: 10_C
3-13
Table 9: Modules for TMR Input and Processor, Fault Tolerant Output
Position
Module Type
I/P A
3 × T9401/2 Digital Input Module, 24V dc, 8/16 Channel +
T9803 Digital Input TA, 16 Channel, TMR
or
3 × T9431/2 Analogue Input Module, 8/16 Channel +
T9833 Analogue Input TA, 16 Channel, TMR
2 × T9300 I/O Base Unit
CPU A &
CPU B
3 × T9110 Processor Module, T9100 Processor Base Unit,
O/P A
2 × T9451 Digital Output Module, 24V dc, 8 Channel +
9852 Digital Output TA, 24V dc 8 Channel, Dual
Or
2 x T9481/T9842 Analogue Output Module, 3/8 Ch,
Isolated + T9882 Analogue Output TA, 8 Ch, Dual
Note: All configurations that use dual or triplicate processor modules are
suitable for SIL3 architectures with de-energize to trip outputs. Dual outputs
are also required for SIL3 energize to action outputs.