Chapter 4 Parameters

10H: write multiple registers

The available function codes and examples for VFD-E are described as follows:

(1) 03H: multi read, read data from registers.

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

ASCII mode:

Command message:

 

STX

‘:’

 

 

 

 

Address

‘0’

 

 

 

‘1’

 

 

 

 

 

 

Function

‘0’

 

 

 

‘3’

 

 

 

 

 

 

 

‘2’

 

 

 

 

Starting data

‘1’

 

 

 

address

‘0’

 

 

 

 

 

 

 

‘2’

 

 

 

 

 

‘0’

 

 

 

 

Number of data

‘0’

 

(count by word)

‘0’

 

 

 

 

 

‘2’

 

 

 

 

LRC Check

‘D’

 

 

 

‘7’

 

 

 

 

 

 

END

CR

 

 

 

LF

 

 

RTU mode:

 

Response message:

STX

‘:’

 

 

Address

‘0’

 

‘1’

 

 

 

Function

‘0’

 

‘3’

 

 

 

Number of data

‘0’

(Count by byte)

‘4’

 

 

 

‘1’

Content of starting

 

‘7’

address

 

‘7’

2102H

 

‘0’

 

 

 

‘0’

 

 

Content of address

‘0’

 

2103H

‘0’

 

 

 

 

‘0’

 

 

LRC Check

‘7’

 

‘1’

 

 

 

END

CR

 

LF

 

 

 

Command message:

Address

01H

 

 

Function

03H

 

 

Starting data

21H

 

address

02H

 

 

 

Response message:

Address

01H

 

 

Function

03H

 

 

Number of data

04H

(count by byte)

 

 

 

Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11

4-117

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Image 170
Delta Electronics VFD-E manual Command message