In PLC communication error or timeout or download the prompt solution of the model

Summary of solutions for communication errors or communication timeouts in Delta PLC, or incompatible models during download

When we use WPL Soft or ISP Soft to connect to the PLC, the error may appearIn the case of abnormal communication, etc., I will share with you several situations that I have summarized personally. It would be great if it can help you solve the problem.

1. First, confirm whether your serial communication driver has been installed normally. As shown in the figure below, when connecting the PLC and the computer with the programming data cable, in Computer-Management-Device Manager,Can see Port number(COMxx)
   
2. Take WPL Soft programming software as an example, as shown in the figure below, after opening the software or program file, click "Settings" - model settings,
   
   Select the model that matches the PLC you are currently using, as shown in the figure below, here is the ES/EC seriesPLC model,
   
3. After the model setting is completed, click Settings - Communication Settings, as shown in the figure below,