Automation of reciprocating gas engine compressor packages using programmable logic controllers

An approach taken to automate gas-engine/compressor skid-mounted packages is described. Design criteria and special considerations relating to the application of programmable logic controllers (PLCs) are discussed. Using typical industry standard specifications along with I/O lists, sequence narratives, and logic diagrams, the PLCs can be programmed to perform the desired operation. The added capabilities of the PLC enhance simulation, checkout, and startup. The presentation is based on experience gained from the installation of three reciprocating engine/compressor packages on remote unmanned platforms in the Gulf of Mexico.<>