![SCOV SV800 Series User Manual Download Page 229](http://html.mh-extra.com/html/scov/sv800-series/sv800-series_user-manual_1219567229.webp)
SV800/SV800A User Manual Appendix B: Communication
221
shown in below table:
Table B-2 Function code address
Function code group
Register address high byte
Function code group
Register address high byte
A0
0x00
E3
0x43
A1
0x01
E4
0x44
A2
0x02
F0
0x50
b0
0x10
F1
0x51
b1
0x11
F2
0x52
b2
0x12
F3
0x53
b3
0x13
H0
0x70
C0
0x20
H1
0x71
C1
0x21
H2
0x72
C2
0x22
H3
0x73
C3
0x23
H4
0x74
d0
0x30
L0
0x90
d1
0x31
P0
0xC0
d2
0x32
U0
0xF0
d3
0x33
U1
0xF1
d4
0x34
U2
0xF2
E0
0x40
U3
0xF3
E1
0x41
Control parameter
0x60
E2
0x42
The application layer protocol data units of each function code are as follows:
Function code 0x03: Read register contents
The request format is as follows:
Application layer data unit
Data length (bytes)
Range
Local address
1
1~247
Function code
1
0x03
Register address
2
0x0000~0xFFFF
Number of registers
2
0x0001~0x000C
Check
CRC
0x0000~0xFFFF
The answer format is as follows:
Summary of Contents for SV800 Series
Page 8: ......