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UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
PLC evolves into multi-functional unit to support system automation. C. Miller and K. Tully. Pipeline Gas Ind., May 1999, 82(5), 25--32.
The evolution of programmable logic controllers (PLCs) for pipeline automation is described. Developments are mainly due to advances in micro-processors, networking capabilities, and software tools. Growth, functionality, and flexibility of PLC systems are discussed. PLCs are compared with personal computers for process control and with distributed control systems for continuous and semi-continuous applications. Use of PLCs in gas and oil pipeline automation and for reciprocating engine controls is described. The most complex application automated by PLCs is turbomachinery control. This is described and examples of functionality in turbomachinery applications are listed. 7 refs.
Abstract details
Journal title: Pipe Line & Gas Industry
Subjects: Information technology, Information systems, Control systems, Process control, Pipeline, Oil and gas, Oil, Software
