Details
HoneywellMC-TDID12 51304441-175 Digital Input 24VDC
Redundant Controller and redundant IO
This Safety Manager architecture has a redundant Controller and redundant input and output (IO) modules (OR function outputs) (see Figure 17 and Figure 18 below). The IO modules are controlled via the IO bus drivers (located in the QPP) and the IO Bus, which can control up to 8 IO chassis per cabinet. Each IO chassis is controlled via the IO Extender. The processor and IO are fully redundant, which allows continuous operation and smooth (zero-delay) transfer of the control in case of a Control Processor or IO failure. This architecture can be applied up to and including SIL3
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