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BASICS OF TRIPS, INTERLOCKS, PERMISSIVES & SEQUENCES

S Bharadwaj ReddyMarch 15, 2019March 15, 2019

This post provides information about basics of Trip, Interlock, Permissive and Sequences which are regularly used in instrumentation control systems like ESD, DCS, PLC etc. Trip: The term Trip refers to an action that

Process Interlocks and Trips

S Bharadwaj ReddyDecember 6, 2018May 6, 2019

Protective tripping systems provide a defence against excursions beyond the safe operating limits by detecting a excursions beyond set points related to the safe operating limits (i.e. the onset of

Basics of Permissive and Interlock Circuits

S Bharadwaj ReddyMay 19, 2017March 21, 2019

A practical application of switch and relay logic is in control systems where several process conditions have to be met before a piece of equipment is allowed to start. Permissive

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