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PLC automatic control system for normally closed air door group in coal mine

  • 2013-09-22
  • 165.34KB
  • Points it Requires : 2

This article briefly introduces the characteristics of the normally closed air door group in coal mines and the automatic control system composed of PLC, sensors, actuators, etc.; it describes the control logic of the control system in detail and provides the S7-200PLC programming flow chart for realizing its control logic. Keywords: automatic air door; PLC; control logic; control system

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