1. Before establishing communication connection, confirm the communication parameter settings of PLC/DCS, mainly including communication protocol, communication slogan and baud rate.
2. When using Kingview to establish communication connection, it is necessary to ensure that the serial port parameters of Kingview are set correctly, including baud rate, data bit, check bit and stop bit.
3. In the serial port setting of Kingview, you need to select the serial port corresponding to the communication slogan of PLC/DCS, and then set the baud rate to the same as the communication slogan of PLC/DCS.
The baud rate of 4.PLC/DCS is 9600 by default, and the communication slogan is 1 by default.