Automation and the economy. Hardwired logic versus programmable logic. Control system components. Industrial motor control: starting, braking, reversal, and sequencing. Introduction to programmable logic controllers. PLC hardware and memory organization. Ladder logic. Sequential and combinational logic instructions. Timers and counters programming. Data manipulation instructions. Math instructions. Installation practices and troubleshooting. Pre-req.: COMP 208, POWE 344.