DOI: 10.36347/sjet

Pages: 137-141

According to the technological requirements of the control system, the Siemens S7200PLC can operate the valve by liquid level sensor data, and complete automatically the liquid mixing in this liquid hybrid control system. It can undertake the single cycle or more cycle work, has the power memory function, and continue to work after the reset. Conditions monitor through the configuration interface has an application in industrial liquid mixture stirring device, and the realization of mixing process has realized automatic control, which can provide the strong guarantee for high mixer, mixing device of the smooth and orderly and accurate work.