Many people have encountered industrial contact screen contact no response, no matter how we point to the industrial contact screen is not responding, at this time many people don't know what to do, today let's take a look at what to do when encountering industrial contact screen contact no response.
1. Check the wiring port: first check whether the wiring interface is loose, and then check whether the serial port and the interrupt number are conflicting, if there is resistance, the resources should be adjusted to avoid conflict. Then check whether there are cracks on the surface of the industrial contact screen, and replace them in time if there are cracks. It is also necessary to check the surface of the contact screen for dirt, and if so, remove it with a soft cloth. Investigate to see if the indicator light on the control box is working properly, and when it is normal, the indicator light is green and shining.
2. Replacement method * view: If the above parts are normal, you can use the replacement method to view the industrial contact screen, first replace the control box, then replace the contact screen, and then replace the host.
(1) It may be that in the connection of the contact screen, one of the cables connected to the keyboard port of the host (take the 5 volt contact screen operating voltage from the keyboard port) is not connected, please check the connection.
(2) If the slogan selected in the process of the driver device of the contact screen does not correspond to the slogan of the contact screen practice, please uninstall the driver and re-install it.
(3) It may be that the host is a domestic original machine, and the operating system installed is an OEM version, which has been adjusted by the manufacturer, resulting in the non-standard nature of serial port communication, which is not compatible with the contact screen driver.
(4) It is possible that the contact screen driver version is too low, please install the new driver.
(5) Whether there are devices in the host that conflict with serial port resources, check the hardware devices and adjust them. For example, if the default IRQ of some NIC devices is 3, which conflicts with the IRQ of COM2, you should change the IRQ of NIC to an idle and unused IRQ.
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