Course Content

  • Water Tank Level Controller by using PLC

Course Content


With the help of a PLC, the system automatically controls the water level. The PLC receives level data from three level sensors (float switches). The PLC is linked to float switches in the tank, which provide control signals and turn the pump on and off.

Selected Manual Mode, OFF Position, and Low Water Level. Select Manual Mode and adjust the water level between low and high. The Auto Mode has been selected, and the High Level Switch has been activated.

The level is measured with an LVDT sensor, while the temperature is measured with an RTD sensor. Through a transducer circuit, these sensors are connected to a PLC. The motor is controlled via a linear drive circuit, and the heater is controlled using a Pulse Width Modulation (PWM) drive circuit, both of which are controlled by a PLC.

Water is pumped up from the ground tank to the raised tank and then distributed to each floor via the water mains. When the elevated tank's water level falls below a certain level, water is pushed up from the ground tank to replenish it. The pump turns off when the water level reaches a specified level.

Choose a Level Controller based on the control technique, mounting method, object to detect, wiring length, and other factors. Choose an Electrode Holder that is appropriate for the tank's environment as well as the tank's installation environment. Choose the Electrodes based on the tank's environment and the control range.

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