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PLC |
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PLC (1) (Programmable Logic Controller) A programmable microprocessor-based device that is used in discrete manufacturing to control assembly lines and machinery on the shop floor as well as many other types of mechanical, electrical and electronic equipment in a plant. Typically RISC based and programmed in an IEC 61131 programming language, a PLC is designed for real-time use in rugged, industrial environments. Connected to sensors and actuators, PLCs are categorized by the number and type of I/O ports they provide and by their I/O scan rate.In the late 1960s, PLCs were first used to replace the hardwired networks of relays and timers in automobile assembly lines, which were partially automated at that time. The programmability of the PLC enabled changes to be effected considerably faster. Contrast with PAC and DCS. See IEC 61131. (2) (Power Line Communications) See broadband over power lines.
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No references found | When the PLC (Programmable Logic Controllers) is not functioning properly, lines shut down, plants shutdown, even city bridges and water stations could cease to operate. have announced the availability of the Embedded PLC Application Kit, offering PLC (Programmable Logic Controllers) developers the ability to incorporate reliable low-cost Rabbit hardware in lieu of more expensive PLC systems. Exterieur 19 First Bank of Feb-07 Nigeria 604 Nigeria plc 20 BEA Dec-05 Algeria 561 21 Credit Populalre Dec-06 Algeria 556 d'Algerie 22 Commercial Dec-07 Egypt 514 International Bank 23 Ecobank Dec-07 Togo 514 Transnational 24 Banque du Caire Jun-06 Egypt 510 25 CNEP Dec-06 Algeria 487 26 The Mauritius Jun-07 Mauritius 477 Commercial Bank Ltd 27 Diamond Bank PLC Apr-07 Nigeria 423 28 Soc. |
PLC |
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