Salicru CV10-002-S2, Руководство пользователя, Страница: 80 / 104

80 - 104 Communication protocol
START T1-T2-T3-T4 (transmission time of 3.5 bytes)
ADDR 02H
CMD 06H
High bit of writing data address 00H
Low bit of writing data address 04H
data content
13H
data content
88H
CRC CHK low bit C5H
CRC CHK high bit 6EH
END T1-T2-T3-T4 (transmission time of 3.5 bytes)
RTU slave response message (from the inverter to the master)
START T1-T2-T3-T4 (transmission time of 3.5 bytes)
ADDR 02H
CMD 06H
High bit of writing data address 00H
Low bit of writing data address 04H
High bit of data content
13H
Low bit of data content
88H
CRC CHK low bit C5H
CRC CHK high bit 6EH
END T1-T2-T3-T4 (transmission time of 3.5 bytes)
Note: section 7.3.1 and 7.3.2 mainly describe the command format, and the detailed application will be
mentioned in 7.3.3 with examples.
7.3.3 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 the 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 byte of sub-function code 00H
Low byte of sub-function code 00H
High byte of data content 12H
Low byte of data content ABH