INVT IPE300 Series, Руководство по эксплуатации

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IPE300 series engineering VFD Communication protocol
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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 format is described as follows.
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
MSB of to-be-written data 12H
LSB of to-be-written data 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
MSB of to-be-written data 12H
LSB of to-be-written data ABH
CRC CHK LSB ADH
CRC CHK MSB 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
written is determined by "Data quantity", 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 structure is as follows.
RTU master command (from the master to the VFD)