In this series, we have seen that a Function Block has many practical real-world automation applications. Today, I will complete the example of the small batch process with a large mixing tank with an agitator, four-ingredient addition lines, and a bottom valve.

In the previous video, I showed you how to configure the required logic in the MAIN OB to call the sequencer and how to configure the logic to allow the sequencer to transition from one step to the next.

In this video, I will complete the PLC program by adding some control logic to the Sequencer FB and MAIN OB.

In the next, and last video in this series, I will compile and download the program to the PLC and simulate the operation of the batch process.