Modbus RTU Recommended wire length

Периферийные устройства WB-MR
1

Please ,

Modbus /RTU wire specs or wire length limit ?

Thanks

MDias

2

Please refer to the following document: https://modbus.org/docs/Modbus_over_serial_line_V1_02.pdf

Basically it’s up to 1km at 9600 baud, several hundred meters at 115200 baud.

As for the wire, there are special cables for RS-485, but basically any shieldied twisted pair will do.