hpmont HD30 Series Manual

Appendix C Communication Protocol Shenzhen Hpmont Technology Co., Ltd
―162― HD30 Series Inverters User Manual
parameters. The saving operation will return from the first faulty address if it isn’t completely
success.
5) Function parameters management
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 date 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
modle
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
On condition that the operation command fails, response is fault code and exception code.
Subfunction under function parameter management:
Subfunction
code
Data (command) Data (response) Subfunction meanings
0x0000
The function parameter
group no. and
intergroup index occupy
the higher and lower
bytes respectively.
The upper limit of function
parameter.
To read the upper limit of
function parameter.
(Unsupported this
operation of reading
upper limit in status and
control parameters)
0x0001
The function parameter
group no. and
intergroup index occupy
the higher and lower
bytes respectively.
The lower limit of function
parameter.
To read the lower limit of
function parameter.
(Unsupported this
operation of reading
lower limit in status and
control parameters)
0x0002
The function parameter
group no. and
intergroup index occupy
the higher and lower
bytes respectively.
Characteristics of function
parameters and see the table of
parameter’s characteristics for
more details
To read the characteristic
of function parameters.
(Unsupported this
operation of reading
characteristic in control

hpmont HD30 Series Specifications

General

Brand	hpmont
Model	HD30 Series
Category	Inverter
Language	English