What is Dcs ,,how it works and how it dividing current/signal through IO module. BASIC ..step by step?

[denizen]

Basics of Distributed Control System (DCS)

DISTRIBUTED CONTROL SYSTEM A system of dividing plant or process control into several areas of responsibility, each managed by its own controller, with the whole system connected to form a single entity, usually by means of communication buses Used for continuous control of chemical processing Control functions are distributed throughout redundant, deterministic networked computer architecture I/O interface and level 1 control functions advanced control functions human interface DCS replaced…