IMO SD1 Series - Page 130

SD1 Series Inverters Communication Protocol
-125-
Low bit of data content
88H
CRC CHK low bit
C5H
CRC CHK high bit
6EH
END
T1-T2-T3-T4
Note: Sections 7.2 and 7.3 mainly describe the command formats.
7.3.1.3 Command code 08H, diagnosis
Meaning of sub-function codes
Sub-function Code
Description
0000
Return to inquire information data
For example: The inquiry information string is same as the response information string when
the loop detection to address 01H of driver is carried out.
The RTU request command is:
START
T1-T2-T3-T4
ADDR
01H
CMD
08H
High bit of sub-function code
00H
Low bit of sub-function code
00H
High bit of data content
12H
Low bit of data content
ABH
CRC CHK low bit
ADH
CRC CHK high bit
14H
END
T1-T2-T3-T4
The RTU response command is:
START
T1-T2-T3-T4
ADDR
01H
CMD
08H
High bit of sub-function code
00H
Low bit of sub-function code
00H
High bit of data content
12H
Low bit of data content
ABH
CRC CHK low bit
ADH
CRC CHK high bit
14H
END
T1-T2-T3-T4
7.3.1.4 Command code 10H, continuous writing
Command code 10H means that if the master writes data to the inverter, the data number
depends on the "data number" in the command code. The max. continuous reading number is