How to choose industrial touch display?

In industrial environments, industrial-grade displays must not only withstand the test of harsh environments, but also have a variety of interfaces to ensure seamless connection with various devices. If you do not pay attention to the interface type when purchasing, it may cause the device to fail to connect normally, and even affect the entire production process. So, what common interfaces do industrial display manufacturers provide? Which interfaces are essential? What details should you pay attention to when purchasing?

1. 1. VGA Port

The VGA interface is an analog signal interface. Although high-definition digital signals are now popular, some old industrial control equipment and PLC control systems still rely on VGA connections. For users who need to be compatible with old equipment, when purchasing industrial display brands, be sure to confirm whether they are equipped with a VGA interface. However, the signal quality of VGA is relatively low, and long-distance transmission is easily interfered. If you can choose a more advanced digital interface, it is recommended to give priority to other options.

2. 2. HDMI Port

If high-resolution display is required, the HDMI interface is the first choice. It supports 1080P or even 4K image quality, and can transmit video and audio at the same time, reducing the trouble of additional wiring. Nowadays, most industrial display manufacturers will equip their products with HDMI interfaces to facilitate connection with various modern industrial control hosts, embedded computers or industrial computers.

3. 3. Display Port

DisplayPort (DP) is a more advanced interface than HDMI, supporting higher resolution and refresh rate, and can also transmit audio and video signals. For industrial scenarios that require multi-screen splicing and high-definition display, the stability and bandwidth performance of the DP interface are better. Some high-end industrial display brands will be equipped with a DP interface, which is suitable for applications with high requirements for display effects, such as industrial monitoring, data visualization, etc.

4. 4. USB port

For touch displays, USB interfaces are essential, because most touch functions transmit signals through USB. Without USB interfaces, touch functions are basically unavailable. In addition, USB can also be used to connect external devices such as keyboards, mice, and USB flash drives to improve operational convenience.

5. 5. RS232/RS485 Interface

In the field of industrial automation, RS232 and RS485 interfaces are still essential communication methods. RS232: Suitable for point-to-point connection, such as data transmission of PLC, sensors and other devices. RS485: Supports multi-device communication, has stronger anti-interference ability, and is suitable for long-distance transmission. If your display needs to interact with industrial control equipment, such as displaying PLC operating status, controlling process parameters, etc., you must ensure that it has at least RS232 or RS485 interface when purchasing.

6. 6. RJ45 Interface

Some industrial display brands provide RJ45 network interfaces on high-end models for connecting to the local area network to achieve remote monitoring, data transmission and other functions. This interface is essential for scenarios that require remote management and IoT applications.

Conclusion

When purchasing industrial display screens, the type of interface is an easily overlooked but very important detail. If the interfaces do not match, it will lead to additional conversion costs and even affect the compatibility of the equipment. Although the price of industrial display screens varies depending on the brand and configuration, choosing the right interface combination can ensure the stable operation of the equipment and improve work efficiency.