PLC Programming Example of a Process Mixer

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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-programm... • See Process Mixer Test Simulation - Testing the program in a 3D environment • • PLC Example - Process Mixer Test Simu... • 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

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