How a PLC Communicates with an HMI using FactoryTalk View SE with Studio 5000

Take 15 minutes to learn how a PLC communicates to an HMI with Studio 5000 & FactoryTalk View Site Edition. This will help you learn the ins & outs of what to do to do things properly.

PLCs (Programmable Logic Controllers) and HMIs (Human Machine Interfaces) are two important components of modern industrial automation systems. PLCs are used to control and automate various industrial processes, while HMIs provide a graphical interface for operators to monitor and interact with these processes. In this article, we will look at how PLCs and HMIs can be used together to create a more efficient and user-friendly industrial automation system, specifically by using FactoryTalk View SE with Studio 5000.

PLC Communication Protocols

PLCs communicate with other devices and systems using various communication protocols, such as Ethernet, Modbus, and Profinet. One of the most widely used communication protocols in the industrial automation industry is Ethernet, which allows for fast and reliable data transfer between devices.

To establish communication between a PLC and an HMI, both devices must be connected to the same network and configured to use the same communication protocol. In the case of FactoryTalk View SE with Studio 5000, the PLC and HMI can be connected using Ethernet and configured to use the Modbus TCP/IP protocol.

Setting Up Communication Between a PLC and an HMI

Once the PLC and HMI are connected to the same network and configured to use the same communication protocol, the next step is to set up the communication between the two devices. This can be done using the Studio 5000 software, which is used to design, configure, and program PLCs.

To set up the communication between a PLC and an HMI using Studio 5000, follow these steps:

1. Open the Studio 5000 software and connect to the PLC.

2. In the PLC program, create a new tag for each data point that you want to communicate with the HMI. For example, if you want to communicate the temperature of a process to the HMI, you would create a tag called "Temperature."

3. In the HMI project, create a new screen and add a widget (e.g., a gauge or a text box) to display the data from the PLC.

4. In the HMI project, go to the "Properties" tab and select the widget that you just added.

5. In the "Properties" tab, go to the "Data" section and select the "PLC Tag" option.

6. Select the PLC tag that you created in the PLC program (e.g., "Temperature") and click "OK."

7. Save the HMI project and upload it to the HMI device.

8. In the PLC program, run the communication test to verify that the PLC and HMI are communicating correctly.

With these steps, you should now have successful communication between your PLC and HMI using FactoryTalk View SE with Studio 5000.

Conclusion

PLCs and HMIs are essential components of modern industrial automation systems, and they can be used together to create a more efficient and user-friendly system. By using FactoryTalk View SE with Studio 5000, you can easily set up communication between a PLC and an HMI and monitor and control various industrial processes in real-time.

Note: I will be producing more masterclasses coming in 2023.

It's time to learn

0:00 Open Studio 5000 then build the PLC program
1:40 Open FactoryTalk View Site Edition to build an HMI
4:15 Adding Ladder Logic to use for the HMI application
6:10 Downloading the PLC program to the Emulator
7:30 Setting up the HMI shortcuts for PLC communication
8:30 Building a Start/Stop button for the HMI for the PLC logic
12:50 Seeing the HMI and PLC logic side by side

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