LS Mecapion L7 A001, User Manual

Page: 153 / 222

6. Communication Protocol
6-9
(5) Read Each Block Register (0x6A)
Read values on the discontinuous register block (16-bit data).
Sending Packet Normal Receiving Packet
Byte Content Value Byte Content Value
0 Node ID 0x00 0 Node ID 0x00
1 Function 0x6A 1 Function 0x6A
2 Byte Count 0x06 2 Byte Count 0x06
3 Address Hi 0x00 3 Register Value Hi 0x02
4 Address Lo 0x01 4 Register Value Lo 0x2B
5 Address Hi 0x00 5 Register Value Hi 0x00
6 Address Lo 0x04 6 Register Value Lo 0x00
7 Address Hi 0x00 7 Register Value Hi 0x00
8 Address Lo 0x08 8 Register Value Lo 0x64
9 CRC Hi 9 CRC Hi .
10 CRC Lo 10 CRC Lo
Error Receiving Packet
Byte Content Value
0 Node ID 0x00
1 Error Code 0x6A + 0x80
2 Exception Code 0x01 ~ 0x04
3 CRC Hi
4 CRC Lo
Example)
Node-ID
6A
06
01
00
02
CRC Hi
CRC Lo
04
00
0A
Request
Response
Slave Address (Node-ID)
Function Code
Byte Count
Address Hi (First)
Address Lo
Address Hi (Second)
Address Lo
Address Hi (Third)
Address Lo
CRC Hi
CRC Lo
Node-ID
6A
06
02
2B
00
CRC Hi
CRC Lo
00
00
05
Slave Address (Node-ID)
Function Code
Byte Count
Address
’ s Value Hi (First)
Address ’ s Value Lo
Address ’ s Value Hi (Second)
Address ’ s Value Lo
Address ’ s Value Hi (Third)
Address ’ s Value Lo
CRC Hi
CRC Lo