This course presents the evolution, principles and analysis programmable logic control operations as well as the various "on-line" applications of programmable controllers used in modern industries. Special emphasis is placed on troubleshooting techniques, terminations of inputs and outputs, and proper maintenance of at least two different makes of programmable controllers. The lab will start with the "basics" of PLC and its programming, leading the student toward a final result of total PLC control of a system using programmable controllers, magnetic controls, solid state controls and smart devices such as serve linear actuators.