Marko Bursic

Is there any guide which components do we need to make SIL1,2 or 3. I mean a simple explanation like: if you need SIL3 then you require two channel safetyinput, two contactors at output with monitored feedback.
Now, when to use single or double channel input, when to use two channel output, single channel output with two contactors, single channel output with single contactor, feedback of contactor, ...etc

Is there a simple book for electricians for that?