Kruger Ecowatt K320 Series Operation Manual page 295

Ecowatt Drive K320 series
®
RTU slave response:
MSB of the sub-function code
LSB of the sub-function code
MSB of data
LSB of data
LSB of CRC CHK
MSB of CRC CHK
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):
MSB of data writing address
LSB of data writing address
MSB of data quantity
LSB of data quantity
Number of bytes
MSB of data to be written to 0004H
LSB of data to be written to 0004H
MSB of data to be written to 0005H
LSB of data to be written to 0005H
LSB of CRC
MSB of CRC
START
ADDR
CMD
END
START
ADDR
CMD
END
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
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Communication
01H
08H
00H
00H
12H
ABH
ADH
14H
02H
10H
00H
04H
00H
02H
04H
13H
88H
00H
32H
C5H
6EH