Appendix B Modbus TCP Communication
B-3
B_
B.3
Exception Response Code in Modbus TCP
Modbus exception response codes that DVP-15MC series motion controller supports are
shown in the table below.
Exception response code
Indication
16#01
Unsupportive function code
16#02
Unsupportive Modbus address
16#03
Data length exceeds the range
B.4
Modbus Function Codes in Modbus TCP
Function code: 03 to read one single or multiple word register values
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
Low byte
Byte7
Function code
Single byte
Byte8
The start address of word registers to be
read
High byte
Byte9
Low byte
Byte10
The number of word registers
(Counted by Word)
High byte
Byte11
Low byte
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
Summary of Contents for DVP-15MC Series
Page 19: ...DVP 15MC Series Motion Controller Operation Manual 1 4 _1 MEMO...
Page 23: ...DVP 15MC Series Operation Manual 2 4 _2 MEMO...
Page 31: ...DVP 15MC Series Motion Controller Operation Manual 3 8 _3 MEMO...
Page 75: ...DVP 15MC Series Motion Controller Operation Manual 6 26 _6 MEMO...
Page 87: ...DVP 15MC Series Motion Controller Operation Manual 7 12 _7 MEMO...
Page 432: ...Chapter 8 Logic Instructions 8 345 8_ MEMO...
Page 470: ...DVP 15MC Series Motion Controller Operation Manual 10 34 10 MEMO...
Page 878: ...DVP 15MC Series Motion Controller Operation Manual 11 408 11 1 MEMO...
Page 920: ...DVP 15MC Series Motion Controller Operation Manual A 16 A MEMO...
Page 941: ...D 1 D Explanation of Homing Modes Table of Contents D 1 Explanation of Homing Modes D 2...
Page 966: ...DVP 15MC Series Motion Controller Operation Manual D 26 D MEMO...