Automation of reciprocating gas engine compressor packages using programmable logic controllers

An approach taken to automate gas engine/compressor skid-mounted packages is described. The approach includes design criteria with special considerations regarding the application of programmable logic controllers (PLCs). Using typical industry-standard specifications along with I/O (input/output) lists, sequence narratives, and logic diagrams, the PLCs may be programmed to perform the desired operation. The added capabilities of the PLC enhance simulation, checkout, and startup. The present work is based on experience gained during the installation of three reciprocating engine/compressor packages on remote unmanned platforms in the Gulf of Mexico