hpmont HD3N Series, Руководство пользователя

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Appendix B Communication Protocol Shenzhen Hpmont Technology Co., Ltd.
- 146 - HD3N Series User Manual V1.1
To rewrite numbers of function parameters or control parameters
Function code 0x10 (set by F17.09), 0x43 (Saved at power off); command Frame and response Frame
are in below table (Take RTU as an example).
Command
Frame
Address Code
Starting
register
address
No. of
register
Byte no. of
register
content
Register
content
CRC /LRC
checking
Data Frame
bytes
1 1 2 2 1
2* no. of
registers
2/1
Value or range 0 - 247 0x10, 0x43
0x0000 -
0xFFFF 0x0000 -
0x0004 2* no. of
registers
Response
Frame
Address Code
Starting register
address
No. of operation
registers
CRC checking
Data Frame
bytes 1 1 2 2 2/1
Value or range 1 - 247 0x10, 0x43 0x0000 - 0xFFFF 0x0000 - 0x0004
This command rewrites the contents of continuous data unit from starting register address where is
mapped as function parameter and control parameter of controller, etc. The controller will start to save
from low address to high address of the register when it continuously saves many register parameters.
The saving will return from the firstly failed address if the saving process isn’t completely successful.
Fault and exception code
If the operation command fails, the response is fault code. The fault code is
＋
0x80.
Exception code Instructions
0x01 Illegal function parameters.
0x02 Illegal register address.
0x03 Data fault. Data is exceeded the upper/lower limit.
0x04 Slave operation fails (including fault caused by data invalid).
0x16
Unsupported operation (unsupported to read the attributes, factory default and upper/lower
limit for the control parameter and status parameter).
0x17 The register number of command Frame is fault.
0x18 Incorrect information Frame , including incorrect information length and incorrect checking.
0x20 Parameters cannot be modified.
0x21 Parameters are unchangeable when the controller is in running status.
0x22 Parameters are protected by password.
E.g.: Write STOP function selection of address 2 (range: 0x00 - 0x01, 0x02 exceeds limit of register
content, and fault code is 0x86 (0x06 + 0x80), abnormal code 0x03.
Command
Frame
Address Code Register address Register content Checksum
0x02 0x06 0x00 0x1C 0x00 0x02 0xc9 0xfe
Response
Frame
Address Error code Exception code Checksum
0x02 0x86 0x03 0xF2 0x61