hpmont HD30 Series User Manual

Appendix C Communication Protocol Shenzhen Hpmont Technology Co., Ltd
―186― HD30 Series Inverters User Manual
To rewrite function parameter (can be saved at power off) or control parameter of certain inverters
(function code 0x43)
Protocol data unit Length of data (byte) Range
Command frame
Address 1
0－247, 0 is broadcast
address
Function code 1 0x10, 0x43
Starting register address 2 0x0000－0xFFFF
Operation register number 2 0x0000－0x0004
Register content bytes 1 2*operation register number
Register content 2*operation register number
CRC /LRC checking 2/1
Response frame
Address 1 1－247
Function code 1 0x10, 0x43
Starting register address 2 0x0000－0xFFFF
Operation register number 2 0x0000－0x0004
CRC /LRC checking 2/1
This command rewrites the contents of continuous data unit from starting register address where
is mapped as inverter’s function parameter and control parameter etc. The inverter will start to
save from low address to high address of the register when it continuously saves many register
parameters. The saving operation will return from the first faulty address if it isn’t completely
success.
⑥
Function parameters management (function code 0x42)
The inverter function parameters management includes reading the upper/lower limit of
parameters, to read parameter characteristics, to read the biggest intergroup index of function
parameters, to read the previous and next function parameter group number, to read index of the
parameter being displayed and to display next status parameter. The parameter characteristics
include read-write ability, parameter units and scaling. These commands are used to adjust
remotely inverter parameters.
The command and response frames of the function parameters management are as follows:
Protocol data unit Length of data (byte) Range
Command frame
Address 1
0－247, 0 is broadcast
address
Function code 1 0x42
Subfunction code 2 0x0000－0x0008
Data 2 Depends on inverter model
CRC /LRC checking 2/1
Response frame
Address 1 1－247
Function code 1 0x42
Subfunction code 2 0x0000－0x0008
Data 2 0x0000－0xFFFF
CRC /LRC checking 2/1

hpmont HD30 Series Specifications

General

Brand	hpmont
Model	HD30 Series
Category	Inverter
Language	English