hpmont HD09-2S1P5G - Chapter 9 MODBUS Communication Protocol; Overview

Shenzhen Hpmont Technology Co., Ltd. Chapter 9 MODBUS Communication Protocol
HD09 Series User Manual V1.1 -61-
Chapter 9 MODBUS Communication Protocol
9.1 Overview
HD09 provides one RJ45 terminal, using standard MODBUS communication protocol.
Users can use the host computer (including computers, PLC and other communications equipment) to
do the following: Read and write inverter function parameters, read the status parameters, write
control commands, including communication when the HD09 in the slave mode.
9.1.1 RJ45 Terminal
RJ45 terminal position, pin definition see section 4.4 External Keypad or Upper Computer, page 17.
The transmission mode is shown in the table below.
Interface Asynchronous, half duplex
Format 1-8-2 (1-bit start bit, 8-bit data bit, 2-bit stop bit)
Baud rate 9600bps
Related parameter settings See F17: SCI Communication Parameter, page 45
9.1.2 Networking Mode
PC master
PLC master
RS232/RS485
switching module
RS232/RS485
switching module
HD09 HD09
HD09
RS485
PC master PLC master
HD09
RS485
HD09
Single-master and multi-slave Single-master and single-slave