Goodrive300-21 integrated machine for air compressor
Communication protocol
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101
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only one piece of data. It is used to modify the parameters and running mode of the inverter.
C.2.3 Command code 08H, diagnosis
Sub-function code description:
Sub-function code
Description
0000
Return data based on query requests
C.2.4 Command code 10H, continuous writing
The command code 10H is used by the master to write data to the inverter. The quantity of data to be
written is determined by "Data quantity", and a maximum of 16 pieces of data can be written.
C.2.5 Data address definition
This section describes the address definition of communication data. The addresses are used for
controlling the running, obtaining the state information, and setting related function parameters of the
inverter.
C.2.5.1 Function code address format rules
The address of a function code consists of two bytes, with the MSB on the left and LSB on the right.
The MSB ranges from 00 to ffH, and the LSB also ranges from 00 to ffH. The MSB is the hexadecimal
form of the group number before the dot mark, and LSB is that of the number behind the dot mark.
Take P05.06 as an example: The group number is 05, that is, the MSB of the parameter address is
the hexadecimal form of 05; and the number behind the dot mark is 06, that is, the LSB is the
hexadecimal form of 05. Therefore, the function code address is 0506H in the hexadecimal form. For
P10.01, the parameter address is 0A01H.
C.2.5.2 Address description of other Modbus functions
This section describes the address definition of communication data. The addresses are used for
controlling the running, obtaining the status information, and setting function parameters of the
inverter.
Table C-1 Other function parameters
Function
Address
Data description
R/W
Communication-based
control command
2000H
0001H: Run forward
R/W
0002H: Run reversely
0003H: Jog forward
0004H: Jog reversely
0005H: Stop
0006H: Coast to stop
0007H: Fault reset
0008H: Jogging stop
