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FS-8700-01 Modbus RTU/ASCIIFS-8700-01_Modbus_RTU Driver Manual
TABLE OF CONTENTS
1
Modbus RTU/ Modbus ASCII Description ....................................................................................................... 3
2
Driver Scope of Supply ................................................................................................................................... 3
2.1
Supplied by FieldServer Technologies for this driver ................................................................................... 3
2.2
3
Hardware Connections ................................................................................................................................... 4
4
Data Array Parameters ................................................................................................................................... 5
5
Configuring the FieldServer as a Modbus RTU or Modbus ASCII Client. .......................................................... 6
5.1
Client Side Connection Parameters .............................................................................................................. 6
5.2
Client Side Node Parameters ....................................................................................................................... 7
5.3
Client Side Map Descriptor Parameters ....................................................................................................... 7
5.3.1
FieldServer Related Map Descriptor Parameters ..................................................................................... 7
5.3.2
Driver Related Map Descriptor Parameters ............................................................................................. 8
5.3.3
Timing Parameters ................................................................................................................................... 8
5.3.4
Map Descriptor Examples. ....................................................................................................................... 9
6
Configuring the FieldServer as a Modbus RTU or Modbus ASCII Server ........................................................ 10
6.1
Server Side Connection Parameters ........................................................................................................... 10
6.2
Server Side Node Parameters .................................................................................................................... 11
6.3
Server Side Map Descriptor Parameters .................................................................................................... 12
6.3.1
FieldServer Specific Map Descriptor Parameters ................................................................................... 12
6.3.2
Driver Specific Map Descriptor Parameters ........................................................................................... 12
6.3.3
Map Descriptor Examples ...................................................................................................................... 13
6.3.4
Slave_Id .................................................................................................................................................. 13
Appendix A. Useful Features - Modbus RTU ........................................................................................................ 14
Appendix A.1. Managing Floating points with Modbus ........................................................................................... 14
Transferring non-integer values with one register ................................................................. 14
Transferring 32 bit values with two registers ......................................................................... 15
Appendix A.2. Node_Offline_Response................................................................................................................... 16
Appendix B. Useful Features ................................................................................................................................ 17
Appendix B.1. Map Descriptor Functions ................................................................................................................ 17
Appendix C. Troubleshooting ............................................................................................................................... 18
Appendix C.1. Server Configuration of System Station Address .............................................................................. 18
Appendix D. Vendor Information ......................................................................................................................... 19
Appendix D.1. Connection to York Modbus Microgateway .................................................................................... 19
Appendix D.2. Modbus ASCII - Examples of FieldServer setup for typical clients ................................................... 19
FieldServer with GE Cimplicity as client.................................................................................. 19
FieldServer with Intellution FIX as a client ............................................................................. 19
Appendix E. Reference ......................................................................................................................................... 21
Appendix E.1. Data Types ........................................................................................................................................ 21
Appendix E.2. Single Writes ..................................................................................................................................... 21
Example: FC 6 = Write Single Register ................................................................................... 22
Appendix E.3. Read/write Operation ....................................................................................................................... 22
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
Party Equipment ............................................................................................... 3
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