INVT Goodrive300-19 Series Operation Manual page 218

Goodrive300-19 series open loop vector inverter special for hosit
RTU master command message (from the master to the inverter)
High bit of writing data address
Low bit of writing data address
High bit of data content
Low bit of data content
CRC low bit
CRC high bit
RTU slave response message (from the inverter to the master)
High bit of writing data address
Low bit of writing data address
High bit of data content
Low bit of data content
CRC low bit
CRC high bit
Note: 11.2 and 11.3 mainly describe the command format, and the detailed application will be
mentioned in 11.8 with examples.
10.4.3 Command code: 08H, diagnosis function
Meaning of sub-function codes:
Sub-function code
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
ADDR
CMD
END
START
ADDR
CMD
END
0000
START
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
Return to inquire information data
T1-T2-T3-T4 (transmission time of 3.5 bytes)
-217-
Communication protocol
02H
06H
00H
04H
13H
88H
C5H
6EH
02H
06H
00H
04H
13H
88H
C5H
6EH
Description