Overcoming the control challenge of level control

There are no complex libraries needed to monitor, maintain, and control levels as we saw with temperature control and tension control. Level control applications are straightforward, and in a way, very elementary. The algorithms are very simple and can be built by new engineers. A programmer does not need to have immense experience to build a level control application. It is essential to focus on interlocks to avoid errors in software development.

Let us look into a typical tank-filling application in industry and see how the systems work as a whole in the machine and what would happen if things went wrong.

In a level control application, we saw in the previous section that the tank could have two to four capacitive sensors or a single ultrasonic sensor. Let us take an example of a tank connected to four capacitive sensors in this section.

Let us assume that the tank has four sensors—full (very high - 90%), high (75...