TECDrive20-EU Series Inverter Communication protocol
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High bit of writing data address
Low bit of writing data address
Note: Sections 7.3.1.1 and 7.3.1.2 mainly describe the command formats.
7.3.1.3 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
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 follows:
The RTU request command is:
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
The RTU response command is:
T1-T2-T3-T4 (transmission time of 3.5 bytes)
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