Esco invt GD350A Series, Product Manual

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GD350A series high-performance multifunction VFD
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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
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
High-order bit of data writing address 00H
Low-order bit of data writing address 04H
Data count high-order bit 00H
Data count low-order bit 02H
Number of bytes 04H
Content high-order bit of 0004H 13H
Content low-order bit of 0004H 88H
Content high-order bit of 0005H 00H
Content low-order bit of 0005H 32H
CRC low-order bit C5H
CRC high-order bit 6EH
END
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
RTU slave response (sent from the VFD to the master)
START T1-T2-T3-T4 (time gap with a min. length of