5.6 RS485 Modbus communication protocol
The digital communication protocol is based on standard Modbus RTU Half-plex mode. A master
(PC or PLC) can communicate with multiple slaves (the current product) for data exchange and
communication parameter configuration.
5.6.1 Hardware connection
The hardware layer is TIA/EIA-485-A, as illustrated below. In this configuration, the product
(MF5700) is a slave.
5.6.2 Communication parameters
The PC UART communication parameters are listed in the following table.
Parameters
Baud rate (Bits per second)
Start bits 1
Even/Odd parity None
Maximum data length 20
Maximum nodes 247
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