INVT GD350A-004G/5R5P-4, Руководство по эксплуатации

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Goodrive350A series high-performance multifunction VFD Communication
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Note: Sections 9.4.1 and 9.4.2 mainly describe the command formats. For the detailed application,
see section 9.4.8.
9.4.3 Command code 08H, diagnosis
Sub-function code description:
Sub-function code Description
0000 Return data based on query requests
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 formats are described in the following tables.
RTU master command:
START
T1-T2-T3-T4 (time gap with a min. length
of 3.5 bytes)
ADDR 01H
CMD 08H
Sub-function code high-order bit 00H
Sub-function code low-order bit 00H
Data content high-order bit 12H
Data content low-order bit ABH
CRC CHK low-order bit ADH
CRC CHK high-order bit 14H
END
T1-T2-T3-T4 (time gap with a min. length
of 3.5 bytes)
RTU slave response:
START
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
ADDR 01H
CMD 08H
Sub-function code high-order bit 00H
Sub-function code low-order bit 00H
Data content high-order bit 12H
Data content low-order bit ABH
CRC CHK low-order bit ADH
CRC CHK high-order bit 14H
END
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
9.4.4 Command code 10H, continuous writing
The command code 10H is used by the master to write data to the VFD. The quantity of data to be