Design and Implementation of an Automated Lighting System

Abstract

A programmable logic controller is a digitally operated system used in an industrial environment that uses a programmable memory to implement specific functions to control through digital or analogue inputs and outputs of various types of machines. This report used a typical application for PLC's lighting control in a building for an office environment. The proposed design must define an appropriate office with various areas or rooms needing lighting with multiple control signals, the lighting controlled by a Siemens LOGO PLC (type 6ED1 052-1MD00-0BA5). The design has four relay outputs and eight digital inputs configured as analogue inputs. The scheme designed must be unique to meet the minimum requirements, including a provision for emergency evacuation if the radiation levels exceed a critical threshold. The system must use both analogue inputs but used for different purposes, and the analogue input level ranges must be significantly different. The relay logic has controlled by rules derived from an original relay logic using an embedded computer system. It optimises the control tasks to perform rugged designs to withstand vibrations, temperature, humidity, and electrical noise designs that allow a vast expansion. This circuit will be developed and simulated using the LOGO comfort software and then implemented on the PLC hardware. It includes diagrams and a description that clearly describes how the system should operate.