INVT GD350-19-004G-4-B, Руководство по эксплуатации

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Goodrive350-19 series VFD Communication protocols
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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 MSB 00H
Sub-function code LSB 00H
Data MSB 12H
Data LSB ABH
CRC CHK LSB ADH
CRC CHK MSB 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 MSB 00H
Sub-function code LSB 00H
Data MSB 12H
Data LSB ABH
CRC CHK LSB ADH
CRC CHK MSB 14H
END
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
10.4.4 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
written is determined by "Data count", and a maximum of 16 pieces of data can be written.
For example, to write 5000 (1388H) and 50 (0032H) respectively to 0004H and 0005H of the VFD
whose slave address is 02H, the frame structures are described in the following.
RTU master command (sent from the master to the VFD)
START
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
ADDR 02H
CMD 10H