Goodrive30 Series VFD Communication protocol
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High-order bit of data writing address
Low-order bit of data writing address
Data number high-order bit
Data number low-order bit
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
7.4 Data address definition
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 VFD.
7.4.1 Function code address format rules
The address of a function code consists of two bytes, with the high-order bit on the left and
low-order bit on the right. The high-order bit ranges from 00 to ffH, and the low-order bit also
ranges from 00 to ffH. The high-order bit is the hexadecimal form of the group number before
the dot mark, and low-order bit is that of the number behind the dot mark. Take P05.05 as an
example: The group number is 05, that is, the high-order bit of the parameter address is the
hexadecimal form of 05; and the number behind the dot mark is 05, that is, the low-order bit is
the hexadecimal form of 05. Therefore, the function code address is 0505H in the hexadecimal
form. For example, the parameter address of P10.01 is 0A01H.
0: Stop after running once.
1: Keep running in the final value after
running once.
2. Cyclic running.
Simple PLC
memory
selection
0: No memory after power-off
1: Memory after power-off
Note:
The parameters in the P29 group are set by the manufacturer and cannot be read or
modified. Some parameters cannot be modified when the VFD is running; some cannot be
modified regardless of the VFD status. Pay attention to the setting range, unit, and
description of a parameter when modifying it.
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