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FS-8700-01_Modbus_RTU_(T28700-01) Driver Manual Table of Contents
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.FieldServer.com
Tel: (408) 262-2299 Fax: (408) 262-2269 Toll_Free: 888-509-1970 email: support@FieldServer.com
Table of Contents
1.
Modbus RTU/ Modbus ASCII Description ....................................................................... 3
2.
Driver Scope of Supply..................................................................................................... 4
2.1.
Supplied by FieldServer Technologies for this driver.................................................... 4
2.2.
Provided by Supplier of 3
rd
Party Equipment................................................................ 4
3.
Hardware Connections..................................................................................................... 5
4.
Configuring the FieldServer as a Modbus RTU or Modbus ASCII Client. ..................... 6
4.1.
Data Arrays/Descriptors............................................................................................... 6
4.2.
Client Side Connection Descriptors.............................................................................. 7
4.3.
Client Side Node Descriptors....................................................................................... 8
4.4.
Client Side Map Descriptors......................................................................................... 9
4.4.1.
FieldServer Related Map Descriptor Parameters.................................................. 9
4.4.2.
Driver Related Map Descriptor Parameters........................................................... 9
4.4.3.
Timing Parameters................................................................................................ 9
4.4.4.
Map Descriptor Examples....................................................................................10
5.
Configuring the FieldServer as a Modbus RTU or Modbus ASCII Server....................11
5.1.
Server Side Connection Descriptors ...........................................................................11
5.2.
Server Side Node Descriptors.....................................................................................12
5.3.
Server Side Map Descriptors ......................................................................................13
5.3.1.
FieldServer Specific Map Descriptor Parameters.................................................13
5.3.2.
Driver Specific Map Descriptor Parameters .........................................................13
5.3.3.
Map Descriptor Examples....................................................................................14
Appendix A.
Advanced Topics – Modbus RTU..................................................................15
Appendix A.1.
Data Types ..................................................................................................15
Appendix A.2.
Single Writes................................................................................................16
Appendix A.3.
Read/write Operation...................................................................................16
Appendix A.4.
Managing Floating points with Modbus ........................................................17
Appendix A.5.
Connection to York Modbus Microgateway ..................................................18
Appendix A.6.
Node_Offline_Response..............................................................................19
Appendix B.
Modbus ASCII - Examples of FieldServer setup for typical clients ............20
Appendix B.1.
FieldServer with GE Cimplicity as client.......................................................20
Appendix B.2.
FieldServer with Intellution FIX as a client....................................................20