hpmont HD09 Series, User Manual, Page: 68 / 88

Shenzhen Hpmont Technology Co., Ltd. Chapter 9 MODBUS Communication Protocol
HD09 Series User Manual V1.1 -63-
9.3.2 Read the Inverter Function Parameters or Status Parameters
Function code 0x03, request frame and response frame see table below.
Request frame Add Function code
Start register
address
Number of
registers
CRC check
Number of data
frame bytes
1 1 2 2 2
Value or range 0 - 247 0x03 0x0000 - 0xFFFF 0x0001 - 0x000C
Response
frame
Add Function code
Answer number
of bytes
Number of
registers
CRC check
Number of data
frame bytes
1 1 1 2* Noof registers 2
Value or range 1 - 247 0x03 2* No of registers
9.3.3 Rewrite the Inverter a Single Function Parameters or Control Parameters
Function code 0x06 (power-down is set by F17.09), request frame and response frame see table below.
Request frame Add Function code register address
Content of
registers
CRC check
Number of data
frame bytes
1 1 2 2 2
Value or range 0 - 247 0x06 0x0000 - 0xFFFF 0x0000 - 0xFFFF
Response
frame
Add Function code register address
Content of
registers
CRC check
Number of data
frame bytes
1 1 2 2 2
Value or range 1 - 247 0x06 0x0000 - 0xFFFF 0x0000- 0xFFFF