Appendix I
EM15 User’s Manual
120
Higher bits of start address
00H
Lower bits of start address
04H
Higher bits of data number
00H
Lower bits of data number
02H
CRC CHK lower bit
85H
CRC CHK higher bit
CAH
END
T1-T2-T3-T4
RTU mode: Response Message of the Slave
START
T1-T2-T3-T4
ADDR
01H
CMD
03H
Higher bits of data number
00H
Lower bits of data number
0AH
Higher bits of running frequency
xxH
Lower bits of running frequency
xxH
Higher bits of DC bus voltage
xxH
Lower bits of DC bus voltage
xxH
Higher bits of output voltage
xxH
Lower bits of output voltage
xxH
Higher bits of output current
xxH
Lower bits of output current
xxH
Higher bits of output power
xxH
Lower bits of output power
xxH
CRC CHK lower bit
xxH
CRC CHK higher bit
xxH
END
T1-T2-T3-T4
Command code 06H (0000 0110), write one word.
For example, write
10000(2710H)(Setting frequency b0-12 )
into the address 1000H of the inverter with the slave
address of 01H, the structure of the frame is as follows:
RTU mode: Command Message of the Master
START
T1-T2-T3-T4
ADDR
01H
CMD
06H
High bits of data address
10H
Low bits of data address
01H
High bits of data content
27H
Low bits of data content
10H
CRC CHK lower bit
97H
CRC CHK higher bit
36H
END
T1-T2-T3-T4
