| 单词 | programmable logic controller |
| 释义 | > as lemmasprogrammable logic controller programmable logic controller n. Computing and Manufacturing Technology a programmable controller based on logic circuits and used for automatically controlling real-time processes such as the operation of machinery and industrial processes; abbreviated PLC. ΚΠ 1973 Control Engin. Apr. 49/1 Programmable logic controllers are being marketed today as direct substitutes for relay sequencers. 1993 R. J. Pond Introd. Engin. Technol. (ed. 2) ix. 269 The digital controller, probably a programmable logic controller located on the factory floor, offers real-time control for sequencing of operations. 1998 N.Y. Times 27 Dec. i. 24/5 Programmable logic controllers are..used to control a wide range of equipment, everything from heating, ventilation, air-conditioning, to plastic injection molding machines. < as lemmas |
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