Command Code 10H, Continuous Writing - Kruger Ecowatt Drive K120 Series Operation Manual

Ecowatt ® Drive K120 series
RTU master command
Data content
high-order bit
Data content
low-order bit
CRC CHK low-order
bit
CRC CHK high-order
bit
END

7.3.4 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 number", 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):
High-order bit of data writing address
Low-order bit of data writing address
Data number high-order bit
Data number low-order bit
Number of bytes
Content high-order bit of 0004H
Content low-order bit of 0004H
Content high-order bit of 0005H
Content low-order bit of 0005H
CRC low-order bit
CRC high-order bit
12H
ABH
ADH
14H
T1-T2-T3-T4
START
ADDR
CMD
END
RTU slave response
Data content
high-order bit
Data content
low-order bit
CRC CHK low-order bit
CRC CHK high-order
bit
END
T1-T2-T3-T4 (time gap with a min.
length of 3.5 bytes)
T1-T2-T3-T4 (time gap with a min.
length of 3.5 bytes)
-134-
Communication protocol
12H
ABH
ADH
14H
T1-T2-T3-T4
02H
10H
00H
04H
00H
02H
04H
13H
88H
00H
32H
C5H
6EH