PLC Programming Assignment 4: Electronic Engineering Solutions

This assignment solution addresses several practical applications of Programmable Logic Controllers (PLCs) in electronic engineering. Exercise 1 presents an Arduino-based annunciator system with inputs for plant alarm, operator accept, and lamp test, along with corresponding outputs for amber light, green light, and audible alarm, and the code is written in Arduino language. Exercise 2 involves a car park control system, using ladder diagrams to represent the logic for available parking spaces and the indication of full capacity. Exercise 3 describes an elevator control system, and Question 1, 2, and 3 provide solutions for push buttons, pelican crossings, and shift registers, respectively, using ladder diagrams and timer/counter logic. The assignment also covers multiplexing, LANs, RTUs, and communication standards like RS-422 and IEEE-488, providing a comprehensive overview of PLC applications and related technologies. The document concludes with a bibliography of relevant resources.