Modbus Slave Registration Key [updated]
A clean, lightweight, open-source Modbus master and slave simulator that supports both Modbus TCP and RTU.
In serial communication (RS-485/RS-232), the slave address is physically part of the data frame. modbus slave registration key
Launch the software, click on the Help or Registration tab in the top menu bar, and select Register . A clean, lightweight, open-source Modbus master and slave