Programmable Logic Controllers (PLCs) are specialized digital computers used to control industrial processes, machinery, and systems in factories, plants, and other automation environments. PLC programming involves writing code or instructions that the PLC follows to execute specific tasks, such as starting or stopping motors, monitoring sensors, or controlling complex processes in manufacturing systems. • Checking panel and PLC wiring according to drawing • Checking supply for all devices (AC/ DC accordingly) • Testing weather all components are proper functional or not • Ensure fault occurring due to several reason in PLC • Comply with the procedure for downloading program into PLC software • Identify requirements for testing • Explain the various testing procedures • Identify all hardware related errors • Ensure the completion of the factory acceptance test