This course covers the operation and programming of the processor component in a PLC. The five basic operations of all processors are examined including input scan, solving the program logic, output scan, communications service and housekeeping. Emphasis is placed on PLC programming and using diagnostic hardware and software tools to clear faults.

Topics include processor functions, scan time, binary, octal and hexadecimal number systems, addressing, communication ports, error codes, processor status files and error recovery. Additional topics include rung continuity, power flow and relay, timer, counter, data movement, math, bit and flow control instructions.