Delta Electronics DVP15MC11T Operation Manual page 553

DVP15MC11T Operation Manual
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Exception response message data structure:
Byte NO.
B
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Example
To read the content value in the addresses 0x0000 and 0x0001 inside DVP15MC11T via
function code 03. 0x0000 and 0x0001 are the Modbus address of %MW0 and %MW1 inside
DVP15MC11T respectively. Suppose that the value of %MW0 is 0x0100 and the value
of %MW1 is 0x0200.
Request message: 00 00 00 00 00 06 01 03 00 00 00 02
Response message: 00 00 00 00 00 07 01 03 04 01 00 02 00
Function code: 06 to write one single word register value
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Request message data structure:
Byte NO.
B-4
Byte NO.
The number of read word registers.
Byte8
(Counted by Byte)
Byte9
The content value in a word register
Byte10
...
The content value in a word register
Byte n
Byte0
Transaction identifier
Byte1
Byte2
Protocol identifier
Byte3
Byte4
Modbus data length
Byte5
Byte6
Modbus ID
Byte7 0x80+ function code
Byte8
Exception response code
Byte0
Transaction identifier
Byte1
Byte2
Protocol identifier
Byte3
Byte4
Modbus data length
Byte5
Name
Name
Name
Byte
Single byte
High byte
Low byte
High byte
Low byte
Byte
High byte
Low byte
High byte
Low byte
High byte
Low byte
Single byte
Single byte
Single byte
Byte
High byte
Low byte
High byte
Low byte
High byte
Low byte