Delta BLD-E1 brushless DC motor drive BLD-E1 Series User Manual download pdf (Page 125)

Chapter 4 ParametersAT |Troubleshooting}| BLD-E1 Series

4-84

Revision May 2009, 00DE, V0.50

RTU mode:

START A silent interval of more than 10 ms

Address Communication address: 8-bit address

Function

Command code: 8-bit command

DATA (n-1)

DATA 0

Contents of data:

n×8-bit data, n<=16

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 Address (Communication Address)

00H: broadcast to all brushless DC drives

01H: brushless DC drive of address 01

0FH: brushless DC drive of address 15

10H: brushless DC drive of address 16

3.3 Function (Function code) and DATA (data characters)

The format of data characters depends on the function code.

03H: read data from register

06H: write single register

Example: reading continuous 2 data from register address 2102H, register address is 01H.

ASCII mode:

Command message:

Response message:

STX ‘:’ STX ‘:’

‘0’ ‘0’

Address

‘1’

Address

‘1’

‘0’ ‘0’

Function

‘3’

Function

‘3’

‘2’ ‘0’

‘1’

Number of data

(Count by byte)

‘4’

‘0’ ‘1’

Starting data

address

‘2’ ‘7’

‘0’ ‘7’

‘0’

Content of starting

address

2102H

‘0’

‘0’ ‘0’

Number of data

(count by word)

‘2’ ‘0’

‘D’ ‘0’

LRC Check

‘7’

Content of address

2103H

‘0’

CR ‘7’

END

LRC Check

‘1’

END CR

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Delta BLD-E1 brushless DC motor drive BLD-E1 Series User Manual Page 125

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