Introduction - If you have any usage issues, please Google them yourself
modbus RTU' s C51 program microcontroller 89S52 Communication baud rate 96008 bits of data parity stop bit 1-pass 485-bit MCU interface control panel address localAddr (variable) data communication can be set to address: word address 0- 255 (only take 16 bit low 8-bit) bit address 0- 255 (only take 16 of the low 8-bit)