Delta Electronics AC Drive VFD-F Series Especificaciones descargar pdf (Pagina 90)

VFD-F Series

5-57

3. Communication Protocol

3.1 Communication Data Frame:

ASCII mode:

STX Start character ‘:’ (3AH)

ADR 1

ADR 0

Communication address:

8-bit address consists of 2 ASCII codes

CMD 1

CMD 0

Command code:

8-bit command consists of 2 ASCII codes

DATA (n-1)

…….

DATA 0

Contents of data:

N X 8-bit data consists of 2n ASCII codes.

n<=25, maximum of 50 ASCII codes

LRC CHK 1

LRC CHK 0

LRC check sum:

8-bit check sum consists of 2 ASCII codes

END 1

END 0

End characters:

END1= CR (0DH), END0= LF(0AH)

RTU mode:

START A silent interval of more than 10 ms

ADR Communication address: 8-bit address

CMD Command code: 8-bit command

DATA (n-1)

…….

DATA 0

Contents of data:

N X 8-bit data, n<=25

CRC CHK Low

CRC CHK High

CRC check sum:

16-bit check sum consists of 2 8-bit characters

END

A silent interval of more than 10 ms

3.2 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 (AMD). In this case, the AMD will not reply any

message to the master device.

For example, communications to AMD with address 16 decimal:

ASCII mode: (ADR 1, ADR 0) = ’1’,’0’ => ‘1’=31H, ‘0’=30H

RTU mode: (ADR) = 10H

1 2 ... 85 86 87 88 89 90 91 92 93 94 95 ... 189 190

Comentarios a estos manuales

Sin comentarios

Delta Electronics AC Drive VFD-F Series Especificaciones Pagina 90

Comentarios a estos manuales

Relacionado con productos y manuales para Redes Delta Electronics AC Drive VFD-F Series