Main types of display and control touch screens.P3 indoor LED Display

　　From the technical principle, touch screens can be divided into five basic categories: vector pressure sensing technology touch screen, resistance technology touch screen, capacitance technology touch screen, infrared technology touch screen, Surface acoustic wave technology touch screen. The vector pressure sensing technology touch screen has retired from the historical stage; Infrared technology touch screens are inexpensive, but their outer frame is fragile and prone to light interference, resulting in distortion in curved surfaces; The design concept of capacitive technology touch screen is reasonable, but its image distortion problem is difficult to fundamentally solve; The positioning of resistance technology touch screens is accurate, but their price is quite high and they are afraid of being scratched and easily damaged; The Surface acoustic wave touch screen solves various defects of the previous touch screen. It is clear and not easy to be damaged, and is suitable for various occasions. The disadvantage is that if there are water drops and dust on the screen surface, the touch screen will become sluggish, or even not work. According to the working principle of the touch screen and the media used to transmit information, we divide the touch screen into four types: resistive, capacitive, infrared and Surface acoustic wave. Each type of touch screen has its own advantages and disadvantages, and it is important to understand which type of touch screen is suitable for which occasion. The display and control touch screen has the following models: SA-10.4A, SA-10.4B, SA-8A, SA-7A,

　　SA-5.7A, SA-5.7B, SA-5.7C, SA-4.3A, SA-3.5A.

　　The display and control touch screen is an open human-machine interface product that provides a standard serial interface

　　Connect to other devices. The main communication method supported is serial communication, which supports communication with mainstream PLCs on the market today

　　Communication, such as Mitsubishi MITSUBISHI, Siemens Siemens, Omron OMRON, Modicon, etc

　　Etc. At the same time, communication drivers can be developed according to customer requirements.

　　The configuration software for display and control touch screens is SamDraw, which provides users with picture groups

　　Functions such as status, driver settings, controls, etc. The display and control touch screen has 12M of user memory and sufficient storage space to store user engineering files, including graphics, images, recipe files, etc.

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