hpmont HD5L-PLUS Series User Manual

Shenzhen Hpmont Technology Co., Ltd. Appendix B Modbus Communication Protocol
HD5L-PLUS Series User Manual V1.0 119
2. Scaling of Drive Transmitting Values
Except the parameters of the remarks, all other parameters can define the scaling relationship of the
specified function code via referring the manual’s minimum unit.
Remarks:
Communication data 0 - 2000 of F06.07, F13.04, F13.05, F13.07, F13.08, F13.10, F13.11, F13.18 and F13.20
corresponds to data -1000 - +1000.
3. Protocol Function
Supported Function
Modbus protocol supports the below parameter operation:
Supported Function Code Instructions
To read function parameters and status parameter 0x03
To rewrite single function parameter or control parameter
0x06 Not saved at power off
0x41 Saved at power off
To rewrite numbers of function parameters or control parameters 0x43 Saved at power off
To Read Function Parameters and Status Parameter
Function code 0x03, command frame and response frame are in below table (take RTU as an example).
Command
Frame
Address Code
Starting Register
Address
No. of Register
CRC/LRC
Checking
Data frame
bytes
1 1 2 2 2/1
Value or range 0 - 247 0x03 0x0000 - 0xFFFF 0x0001 - 0x0004
Response
Frame
Address Code Read Byte No. Register Content
CRC/LRC
Checking
Data frame
bytes
1 1 1
2 * no. of
registers
2/1
Value or range 1 - 247 0x03
2 * no. of
registers
B

hpmont HD5L-PLUS Series Specifications

General

Brand	hpmont
Model	HD5L-PLUS Series
Category	Controller
Language	English