Goodrive300-LIFT series inverter
Communication protocol
-122-
10.4.3 Command code 08H for 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 (transmission time of 3.5 bytes)
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
Low bit of CRC
ADH
High bit of CRC
14H
END
T1-T2-T3-T4 (transmission time of 3.5 bytes)
The RTU response command is:
START
T1-T2-T3-T4 (transmission time of 3.5 bytes)
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
Low bit of CRC
ADH
High bit of CRC
14H
END
T1-T2-T3-T4 (transmission time of 3.5 bytes)
10.4.4 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 maximum continuous reading number is 16.
For example, write 5000(1388H) to 0004H of the inverter whose slave address is 02H and 50 (0032H)
to 0005H, the frame structure is as below:
The RTU request command is:
