Goodrive270 series VFD for fan and pump Communication
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MSB of data writing address
LSB of data writing address
T1-T2-T3-T4 (transmission time of 3.5 bytes)
Note: The sections 9.4.1 and 9.4.2 mainly describe the command formats. For the detailed
application, see the examples in section 9.4.8.
9.4.3 Command code 08H, diagnosis
Sub-function code description:
Returned data based on query information
For example, to query about the circuit detection information about the VFD whose address is 01H,
the query and return strings are the same, and the format is described as follows.
RTU master command:
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
RTU slave response:
T1-T2-T3-T4 (transmission time of 3.5 bytes)