About Emjen Engineering Inc. and The PLC Code Generator The PLC Code Generator is a product developed and marketed by Emjen Engineering Inc. of London, Ontario, Canada. Although recently established, our personnel have been providing controls automation solutions to manufacturers and machine builders in Southern Ontario since 1996. The PLC Code Generator was developed to service the needs of these companies to develop their capital programs more quickly and more cost effectively. With shrinking project timeframes and the never-ceasing pressure to reduce costs, our customers have been demanding productivity improvements throughout all aspects of their project lifecycles. The PLC Code Generator is our attempt to streamline the development of machine control programming and debug and to reduce manufacturer's Total Cost of Ownership (TCO) of their new and existing automation systems.