Here’s a clear theory explanation of the Basics of PLC (Programmable Logic Controller) so you can---Basics of PLC (Programmable Logic Controller)1. DefinitionA PLC (Programmable Logic Controller) is an industrial digital computer designed to control manufacturing processes or machines.It is robust, designed to work in harsh industrial environments with heat, dust, vibration, and electrical noise.---2. Main PurposeTo automate industrial processes such as assembly lines, robotic devices, and machi