Abstract
In order to achieve the goal of energy conservation,enhances the quality of the water supply system,it consider to use the technology of programmable ogic controler,the relay and the sensor,designs a set of practical water monitor plan It coordinate the software in the hardware foundation to realize the low warning water level to report.and design two kinds of working way— manual and automatic
Programmable controller (PLC) day by day widespread in electricity control system. Carries on the transformation using PLC to the existing electricity conteol system. May the equipment function, the efficiency, the flexibility enhance to a new level.
This article introduced the water level control;electric circuit principle, the PLC elementary knowledge as well as STEP-7Mcriowin32 series PLC the characteristic and uses in the part programming part which the water level control circuit designs. With program the software according to above knowledge and some reference to use in PLC the boring lathe control circuit the design trapezoidal chart writing,then transforms the instruction list, finally debugs.