Answer / m.mohan

all are digital signals,hence DO or DI

ACTIVATED - GIVES O/P 1

NORMAL IT GIVES 0. Whatever we required, we can changes
the o/p.

abt MOS panel

In a industry having a lot of trip logic for
safety purpose or suitable process also.incase the txr or
further inst will make it a problem or mismatching value,we
would make it a loop for avoid trip conditions,after find
out& rectify it.In that operation can do it in a MOS
panel... simply change the selector switch,after take out
the job

why we are using pnp npn for sensors is there any other type?

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