【提问】：RS485 RTU connection
【详情】：I purchased the ew11 product to connect with a product that communicates using the RS485 RTU method. As shown in the attached file, I can receive serial data by directly connecting to a PC. However, data cannot be received when connected to ew11 products. How to set up RS484 RTU method?

【回答】：Modify the serial port baud rate of EW11 to be consistent with your 485 device, then download the IOTService tool to our official website, create a virtual serial port through IOTService tool, the serial port tool on the computer side connects to the virt