Command Code: 06H, Writing A Word - IMO HD2 IP Series Instruction Manual

HD2 IP55 High-ingress Protection Series Inverter
MSB of data in 0004H
LSB of data in 0004H
MSB of data in 0005H
LSB of data in 0005H
The definition of the response information is described as follows:
The value of ADDR is 01H, indicating that the message is transmitted by the inverter whose
address is 01H. The ADDR information occupies one byte.
The value of CMD is 03H, indicating that the message is a response of the inverter to the 03H
command of the master for reading data. The CMD information occupies one byte.
"Number of bytes" indicates the number of bytes between a byte (not included) and the CRC
byte (not included). The value 04 indicates that there are four bytes of data between "Number
of bytes" and "LSB of CRC", that is, "MSB of data in 0004H", "LSB of data in 0004H", "MSB of
data in 0005H", and "LSB of data in 0005H".
A piece of data is two bytes, with the MSB on the left and LSB on the right. From the response,
we can see that the data in 0004H is 1388H, and that in 0005H is 0000H.
CRC check occupies two bytes, with the LSB on the left, and MSB on the right.

9.4.2 Command code: 06H, writing a word

This command is used by the master to write data to the inverter. One command can be used
to write only one piece of data. It is used to modify the parameters and operation mode of the
inverter.
For example, to write 5000 (1388H) to 0004H of the inverter whose address is 02H, the structure
of the frame is described in the following table.
RTU master command (transmitted by the master to the inverter)
MSB of data writing address
LSB of data writing address
MSB of to-be-written data
LSB of to-be-written data
START
ADDR
CMD
Number of bytes
LSB of CRC
MSB of CRC
END
START
ADDR
CMD
LSB of CRC
MSB of CRC
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)
-268
01H
03H
04H
13H
88H
00H
00H
7EH
9DH
02H
06H
00H
04H
13H
88H
C5H
6EH