Function of Racks in PLC – Types of SIEMENS S7-400 PLC Racks
In this article, you will learn the function of racks in a PLC system and the types of Siemens S7-400 PLC racks.
PLC Rack
What is a PLC? – Programmable Logic Controller
A Programmable Logic Controller, also called a PLC or programmable controller, is a computer-type device used to control equipment in an industrial facility.