If the industrial display is malfunctioning, first check whether the connection line with the PLC is broken or the contact is not good. If the line is broken, the communication between the touch screen and the PLC will not be possible, so the touch screen will be in a certain standby state, and there will be no response when touched. It makes people mistakenly think that the touch screen is broken.
After eliminating the PLC communication problem, you can judge whether there is a problem with the touch screen itself. If the touch fails, it can basically be judged that the touch panel is broken. For this kind of screen, just look for the same size and the same cable, and basically replace it. It can be used, there is no need to pursue any original touch panels. These manufacturers of touch screens also use the touch panels provided by the accessory factory to assemble.
Another situation is that there is a problem with the flat cable between the touchpad and the motherboard. For example, the flat cable is broken. If the flexible cable is bent under pressure, it will also break. If it breaks, you can only replace the touchpad. If it is only dirty, you can press the connection plug with your hand, take out the cable, clean it with alcohol, and reinstall it.
Another situation is that the motherboard is broken. In this situation, you can find a professional touch screen repair company to help you repair it.
The industrial touch screen is broken, don't blindly buy a new one, because this kind of thing comes with a user program, that is, to buy a new one, you need to have the code of the original touch screen, if not, you can just replace it with a new one and cannot use it.
Generally, the touch screen will be designed with a background calibration menu, such as pressing 4 corners, or dialing the dial switch at the back, you can enter the system menu, and then test whether the touch panel is normal, so that you can directly judge whether the touch panel is good or not, and install it For a new touchpad, it is better to recalibrate the position between the touchpad and the LCD.
