Automation is the use of machines, control systems and information technologies to optimize productivity in the production of goods and delivery of services. A Programmable Logic Controller, PLC is a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures.
A constant demand for better and more efficient manufacturing and process machinery has led to the requirement for higher quality and reliability in control techniques. By installing efficient and user friendly industrial electronics systems for manufacturing machinery or processors, one can obtain a precise, reliable and prolific means for generating quality products. One of the latest techniques in solid state controls that offers flexible and efficient operation to the user is “PROGRAMMABLE LOGIC CONTROLLER”. The basic idea behind these programmable controllers was to provide means to eliminate high cost associated with inflexible, conventional relay controlled systems.