![SCOV SV800 Series Скачать руководство пользователя страница 230](http://html.mh-extra.com/html/scov/sv800-series/sv800-series_user-manual_1219567230.webp)
Appendix B: Communication SV800/SV800A User Manual
222
Application layer data unit
Data length (bytes)
Range
Local address
1
1~247
Function code
1
0x03
Number of read bytes
1
2 * number of registers
Registers content
2 * number of registers
0x0000~0xFFFF
Check
CRC
0x0000~0xFFFF
Function code 0x06 or 0x41: Write single function code parameter or control parameter.
The request format is as
follows
:
Application layer data unit
Data length (bytes)
Range
Local address
1
1~247
Function code
1
0x06 OR 0x41
Register address
2
0x0000~0xFFFF
Registers content
2
0x0000~0xFFFF
Check
CRC
0x0000~0xFFFF
The answer format is as
follows
:
Application layer data unit
Data length (bytes)
Range
Local address
1
1~247
Function code
1
0x06 OR 0x41
Register address
2
0x0000~0xFFFF
Number of registers
2
0x0000~0xFFFF
Check
CRC
0x0000~0xFFFF
Function code 0x10 or
0x43
: Write multiple function code parameters or control parameters
The request format is as
follows
:
Application layer data unit
Data length (bytes)
Range
Local address
1
1~247
Function code
1
0x10 OR 0x43
Register address
2
0x0000~0xFFFF
Number of registers
2
0x0001~0x000C
Register content bytes
1
2* number of registers
Register contents
2* number of registers
0x0000~0xFFFF
Check
CRC
0x0000~0xFFFF
The answer format is as follows: