Goodrive18 series two-in-one VFD Communication
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can be continuously written.
For example, to write 5000 (1388H) to 0004H and 50 (0032H) to 0005H of the VFD whose
slave address is 02H, the frame structure is as follows:
RTU master command (from the master to the VFD):
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
MSB of data writing address
LSB of data writing address
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
RTU salve response (from the VFD to the master)
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
MSB of data writing address
LSB of data writing address
T1-T2-T3-T4 (time gap with a min. length of
3.5 bytes)
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