Hello friends, I hope you all are doing great. Today, I am going to share the new Coupled Tanks Level Control Lab Library for Proteus , the sixth and last control plant of our University Lab series. Water tanks are where process control starts: a pump, a tank, a level to hold, and a flow out that changes with the level itself. Put a second tank under the first and you have the coupled tanks of process control labs. You can control the top tank directly, but the bottom one only through the top one. That is the classic reason for cascade control. Updates Coupled Tanks Level Control Lab Library for Proteus Latest version: V1.0 (November 2026, this tutorial) Other component libraries: C945 Transistor · PC817 Optocoupler · Relay Module · Resistor · 5 mm LED · Designer Colour LED · Push Button · ...