Eaton MVX9000 Series, Руководство пользователя

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5-70 MVX9000 User Manual
Descriptions of
Parameter Settings
ADR (Communication Address)
Valid communication addresses are in the range of 0 to 254. A Communication
address equal to 0 means broadcast to all AC drives. In this case, the MVX9000
will not reply with any message to the master device.
For example, communication to MVX9000 with address 16 decimal:
ASCII mode: (ADR 1, ADR 0) = 1, 0 => 1 = 31H, 0 = 30H
RTU mode: (ADR) = 10H
CMD (Command code) and DATA (data characters)
The format of data characters depends on the command code. The available
command codes are described as follows: Command code: 03H, read N words.
The maximum value of N is 12. For example, reading continuous 2 words from
starting address 2102H of AMD with address 01H.
Table 5-6: ASCII mode
Command message Response message
STX : STX :
ADR 1
ADR 0 0 ADR 1
ADR 0 0
1 1
CMD 1
CMD 0 0 CMD 1
CMD 0 0
3 3
Starting data address 2 Number of data
(Count by byte) 0
1 4
0 Content of starting data address
2102H 1
2 7
Number of data
(Count by word) 0 7
0 0
0 Content of data address 2103H 0
2 0
LRC CHK 1
LRC CHK 0 D 0
7 0
END 1
END 0 CR LRC CHK 1
LRC CHK 0 7
LF 1
END 1
END 0 CR
LF