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What is the reason lead to led display can not loaded or not on the communication ?
- Dec 27, 2017 -

Communication is not the same as the reasons for not loading, it may be due to the following reasons, according to the listed with the operation of the control:


1, to ensure that the control system hardware has been properly powered. (+ 5V)


2, check and confirm that the serial port used to connect the controller is a straight line, not a cross line.


3, check and confirm that the serial cable intact and no loose or off at both ends.


4, Control LED screen control software and their own choice of control card to select the correct product model, the correct transmission mode, the correct serial port number, the correct serial transmission rate and control software provided dial switch diagram correctly set control System hardware on the address bits and serial transmission rate.


5. Check whether the jumper cap is loose or falling off. If the jumper cap does not loose, please make sure the jumper cap is in the correct direction.


6, such as after the above checks and correction still appear to load, please use a multimeter to measure whether the connected computer or control system hardware serial port is damaged to confirm whether the computer manufacturer should be sent back or the control system is hard Body delivery also test.


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