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...Introduction to plc and ladder logic programming a programmable controller is an industrial computer used for automation of electromechanical processes such as control machinery on factory assembly lines amusement rides or light fixtures plcs are expected work flawlessly years in environments that hazardous the very microelectronic components give modern their excellent flexibility precision prior many these tasks were solved with contactor relay controls this often referred hardwired circuit diagrams had be designed electrical specified installed wiring lists created electricians would then wire necessary perform specific task if error was made wires reconnected correctly change function system expansion required extensive component changes rewiring objectives experiment aims learn basics familiarize students simatic s software program siemens implement different functions using understand each modules theory before you start it convenient know its architecture see figure shown consis...