What are the logical knowledge aspects of the SIS interlock system?

2018-01-28View Original

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What are the logical knowledge aspects of the SIS interlock system?

Reply #22018-01-29

Logical knowledge? Isn’t it the same as normal DCS logic?

Reply #32018-01-29

It depends on the SIL level requirements for each SIF function as defined in the HAZOP study; for example, for SIL3, logical interlock settings such as 2-out-of-1 or 3-out-of-2 can be employed

Reply #42018-01-29

Logical knowledge? Logical function blocks, right? Commonly used AND, OR, NOT gates, as well as flip-flops – these are the most frequently used logical function blocks

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