S1 series standard inverter
-187-
RTU slave response
START
T1-T2-T3-T4 (transmission time of 3.5 bytes)
ADDR
01H
CMD
08H
MSB of the sub-function code
00H
LSB of the sub-function code
00H
MSB of data
12H
LSB of data
ABH
LSB of CRC CHK
ADH
MSB of CRC CHK
14H
END
T1-T2-T3-T4 (transmission time 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 inverter. The quantity of data to be
written is determined by "Data quantity", 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 inverter
whose slave address is 02H, the structure of the frame is described in the following table.
RTU master command (transmitted by the master to the inverter)
START
T1-T2-T3-T4 (transmission time of 3.5 bytes)
ADDR
02H
CMD
10H
MSB of data writing address
00H
LSB of data writing address
04H
MSB of data quantity
00H
LSB of data quantity
02H
Number of bytes
04H
MSB of data to be written to 0004H
13H
LSB of data to be written to 0004H
88H
MSB of data to be written to 0005H
00H
LSB of data to be written to 0005H
32H
LSB of CRC
C5H
MSB of CRC
6EH
END
T1-T2-T3-T4 (transmission time of 3.5 bytes)
RTU slave response (transmitted by the inverter to the master)
START
T1-T2-T3-T4 (transmission time of 3.5 bytes)
ADDR
02H
CMD
10H
MSB of data writing address
00H
LSB of data writing address
04H