Anybus CompactCom 40 Modbus-TCP, Сетевое руководство, Страница: 3 / 72

Anybus ® CompactCom ™ 40 Modbus-TCP ® Transparent Ethernet Network Guide SCM-1202-022 1.1
Table of Contents
Page
1 Preface ............................................................................................................................... 5
1.1 About this document ......................................................................................................5
1.2 Related Documents .......................................................................................................5
1.3 Document History ..........................................................................................................5
1.4 Document Conventions ..................................................................................................5
1.5 Document Specific Conventions......................................................................................6
1.6 Trademark Information ...................................................................................................7
2 About the Anybus CompactCom 40 Modbus-TCP ................................................. 8
2.1 General.........................................................................................................................8
2.2 Features .......................................................................................................................8
2.3 Transparent Ethernet .....................................................................................................8
3 Basic Operation ............................................................................................................. 10
3.1 Software Requirements ................................................................................................10
3.2 Device Customization................................................................................................... 11
3.3 Communication Settings...............................................................................................12
3.4 Diagnostics .................................................................................................................12
3.5 Network Data Exchange ...............................................................................................12
4 Modbus-TCP Register Implementation ................................................................... 15
4.1 Holding Registers (4x) ..................................................................................................15
4.2 Input Registers (3x)......................................................................................................15
4.3 Coils (0x).....................................................................................................................15
4.4 Discrete Inputs (1x) ......................................................................................................15
5 Modbus-TCP Functions............................................................................................... 16
5.1 Read Coils ..................................................................................................................17
5.2 Read Discrete Inputs....................................................................................................17
5.3 Read Holding Registers................................................................................................17
5.4 Read Input Registers....................................................................................................18
5.5 Write Single Coil ..........................................................................................................18
5.6 Write Single Register....................................................................................................18
5.7 Write Multiple Coils ......................................................................................................18
5.8 Write Multiple Registers................................................................................................19
5.9 Read/Write Multiple Registers.......................................................................................19
5.10 Read Device Identification ............................................................................................19