DVP-15MC Series Motion Controller Operation Manual
B-2
B
B.1
Modbus TCP Message Structure
Modbus TCP
message structure
Byte NO.
Name
Explanation
Byte0
Transaction identifier
High byte
0
Byte1
Low byte
Byte2
Protocol identifier
High byte
0
Byte3
Low byte
Byte4
Modbus data length
High byte
The number of bytes of
Modbus address and the
data after it.
Byte5
Low byte
Byte6
Modbus ID
Single byte
0
~
16#FF
Byte7
Function code
Single byte
Byte8
Register address in the
controller
High byte
0~16#FFFF
Byte9
Low byte
Byte10
Modbus data
High byte
The number of bytes of
Modbus data is
determined by function
code.
B.2
Modbus Function Codes Supported in Modbus TCP
Modbus function codes which DVP-15MC series motion controller supports
Function
code
Function
Register
16#02
Read bit register value; maximum 256 bits of data could
be read at a time.
%IX and %QX
16#03
Read one single or multiple word register values;
maximum 100 words of data could be read at a time.
%IW, %QW and
%MW
16#05
Write one single bit register value.
% QX
16#06
Write one single word register value.
%QW and %MW
16#0F
Write multiple bit register values; maximum 256 bits of
data could be written at a time.
% QX
16#10
Write multiple word register values; maximum 100 words
of data could be written at a time.
%QW and %MW
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...
Страница 878: ...DVP 15MC Series Motion Controller Operation Manual 11 408 11 1 MEMO...
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...
Страница 966: ...DVP 15MC Series Motion Controller Operation Manual D 26 D MEMO...