Shenzhen Hpmont Technology Co., Ltd Appendix C Communication Protocol
HD30 Series Inverters User Manual -161-
respectively respectively and shouldn’t be 0x3A.
0x0004 0x0000 No response
After select no-response mode, the slaves then
only answer to “reinitialize communication
command”. It can tell and isolate the faulted slaves.
0x0030
0x0000 0x0000
To set slave no-response invalid command and
fault command.
0x0001 0x0001
To set slave response invalid command and fault
command.
3) To rewrite parameter of single inverter
Protocol date unit Length of data (byte) Range
Command frame
Address 1
0-247, 0 is broadcast
address
Function code 1 0x41
Register address 2 0x0000-0xFFFF
Register content 2 0x0000-0xFFFF
CRC /LRC checking 2/1
Response frame
Address 1 1-247
Function code 1 0x41
Register address 2 0x0000-0xFFFF
Register content 2 0x0000-0xFFFF
CRC /LRC checking 2/1
4) To rewrite function parameter or control parameter of certain inverters
Protocol date unit Length of data (byte) Range
Command frame
Address 1
0-247, 0 is broadcast
address
Function code 1 0x43
Starting register address 2 0x0000-0xFFFF
No. of register 2 0x0001-0x0004
Byte no. of register
content
1
2* no. of operation
registers
Register content
2* no. of operation
registers
CRC /LRC checking 2/1
Response frame
Address 1 1-247
Function code 1 0x43
Starting register address 2 0x0000-0xFFFF
No. of operation registers 2 0x0001-0x0004
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
C