01-09-2014, 04:37 PM
The programmable logic controller represents a key factor in industrial Automation. Its use permits flexible adaptation to varying processes as well as rapid fault finding and error elimination.This report explains the design of a programmable logic controller and its interaction with peripherals with the detail of programming function and programming language.One of the main focal points of the report deal with the practical of RELAYS, PROGRAMMABLE LOGIC CONTROLLER, SCADA, HMI. Relay is an electromechanical switch which is used to isolate one electrical circuit from another.It allows a low current control circuit to make or break an electrically isolated high current circuit path.PLC is a multipurpose clock driven memory based electronic device which is also known as specialized industrial computer which deals with different level of complexity and control system.SCADA stands for supervisory control and data acquisition, a computer system for gathering and analyzing real time data. SCADA systems are used to monitor and control a plant or equipment in industries such as telecommunica