Appendix B Modbus TCP Communication
B-9
B_
Exception response message data structure:
Byte NO.
Name
Byte
Byte0
Transaction identifier
High byte
Byte1
Low byte
Byte2
Protocol identifier
High byte
Byte3
Low byte
Byte4
Modbus data length
High byte
Byte5
Low byte
Byte6
Modbus ID
Single byte
Byte7
16#80+ function code
Single byte
Byte8
Exception response code
Single byte
Example
To read the state value of %QX2.0~%QX3.4 in DVP-15MC series motion controller via function
code 02. 16#A010 is the address of %QX2.0. Suppose that %QX2.0~%QX2.7=1000 0001 and
%QX3.0~%QX3.4=10001.
Request message: 00 00 00 00 00 06 01 02 A0 10 00 0D
Response message: 00 00 00 00 00 06 01 02 02 81 11
Function code: 16#05 to write one single bit register value
Request message data structure:
Byte NO.
Name
Byte
Byte0
Transaction identifier
High byte
Byte1
Low byte
Byte2
Protocol identifier
High byte
Byte3
Low byte
Byte4
Modbus data length
High byte
Byte5
Low byte
Byte6
Modbus ID
Single byte
Byte7
Function code
Single byte
Byte8
Modbus address of a bit register
High byte
Byte9
Low byte
Byte10
The value written in the bit register
High byte
Byte11
Low byte
Содержание DVP-15MC Series
Страница 16: ...1 1 1 Preface Table of Contents 1 1 Explanation of Symbols in This Manual 1 2 1 2 Revision History 1 3...
Страница 19: ...DVP 15MC Series Motion Controller Operation Manual 1 4 _1 MEMO...
Страница 20: ...2 1 2 Overview Table of Contents 2 1 Product Description 2 2 2 2 Functions 2 2 2 3 Profile and Components 2 3...
Страница 23: ...DVP 15MC Series Operation Manual 2 4 _2 MEMO...
Страница 31: ...DVP 15MC Series Motion Controller Operation Manual 3 8 _3 MEMO...
Страница 75: ...DVP 15MC Series Motion Controller Operation Manual 6 26 _6 MEMO...
Страница 87: ...DVP 15MC Series Motion Controller Operation Manual 7 12 _7 MEMO...
Страница 432: ...Chapter 8 Logic Instructions 8 345 8_ MEMO...
Страница 433: ...9 1 9 Chapter 9 Introductions of Axis Parameters Table of Contents 9 1 Description of Axis Parameters 9 2...
Страница 470: ...DVP 15MC Series Motion Controller Operation Manual 10 34 10 MEMO...
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Страница 920: ...DVP 15MC Series Motion Controller Operation Manual A 16 A MEMO...
Страница 941: ...D 1 D Explanation of Homing Modes Table of Contents D 1 Explanation of Homing Modes D 2...
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