INVT GD200L-004G-4, Operation Manual

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Goodrive200L inverters Communication protocol
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9.4.4 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 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 below:
The RTU request command is:
START T1-T2-T3-T4 (transmission time of 3.5 bytes)
ADDR 02H
CMD 10H
High bit of write data
00H
Low bit of write data
04H
High bit of data number
00H
Low bit of data number
02H
Byte number 04H
High bit of data 0004H 13H
Low bit of data 0004H 88H
High bit of data 0005H 00H
Low bit of data 0005H 32H
Low bit of CRC C5H
High bit of CRC 6EH
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 02H
CMD 10H
High bit of write data
00H
Low bit of write data
04H
High bit of data number
00H
Low bit of data number
02H
Low bit of CRC C5H
High bit of CRC 6EH
END T1-T2-T3-T4 (transmission time of 3.5 bytes)
9.4.5 The definition of data address
The address definition of the communication data in this part is to control the running of the
inverter and get the state information and relative function parameters of the inverter.
9.4.5.1 The rules of parameter address of the function codes
The parameter address occupies 2 bytes with the fact that the high bit is in the front and the
low bit is in the behind. The range of high and low byte are: high byte
—
00~ffH; low byte
—
00~ffH. The high byte is the group number before the radix point of the function code and the
low byte is the number after the radix point. But both the high byte and the low byte should