This paper introduces the Siemens S7-200 PLC controller, expounds the design of the information collection, and discusses on the automatic water drainage system.
介绍了西门子s7—200 P LC控制器，阐述了信息采集过程，论述了自动排水系统的设计。
Make use of the automatic drainage system, to reclaim the steam condensate to the boiler, reduce energy consumption and save water.
利用自动疏水系统，将蒸汽冷凝水回收至锅炉，降低能源消耗、节省水源。
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