PLC Programming Example of a Process Mixer

We will apply the five steps to a PLC programming example process mixer. The process mixer will be programmed using ladder logic. We will discuss each step of the PLC program development. A normally open start and normally closed stop pushbuttons are used to start and stop the process. When the start button is pressed, solenoid A energizes to begin filling the tank. As the tank fills, the empty level sensor switch closes. When the tank is complete, the full-level sensor switch closes. Solenoid A is de-energized. The mixer motor starts and runs for 3 minutes to mix the liquid. When the agitate motor stops, solenoid B is energized to empty the tank. The empty sensor switch opens to de-energize solenoid B when the tank is completely empty. The start button is pressed to repeat the sequence. More information can be obtained on our website. https://accautomation.ca/plc-programming-example-process-mixer/ See Process Mixer Test Simulation - Testing the program in a 3D environment https://youtu.be/vJpGJQ8MwCk 00:00 PLC Process Mixer Example 00:45 Five-Step Approach to PLC Program Development - Define the task 01:30 PLC Inputs and Outputs 02:10 Develop Logic Sequence of Operation - Sequence Table 04:05 PLC Program Ladder Logic Development 05:48 Testing of the Process Mixer PLC Program We will apply the five steps to PLC Program development to our following programming example of a process mixer. 1. Define the task 2. Define the inputs and outputs 3. Develop a logical sequence of operation 4. Develop the PLC program 5. Test the program https://www.accautomation.ca