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See also:
Driver Manual
(Supplement to the FieldServer Instruction Manual)
FS-8700-01 Modbus RTU
FS-8700-08 Modbus ASCII
There are several similarities between these two drivers and
we have incorporated them into the same manual to ensure
that our information stays current. Although both drivers
are referenced in this manual, they are different drivers and
need to be ordered separately."
APPLICABILITY & EFFECTIVITY
Effective for all systems manufactured after May 1, 2001
Applicability and Effectivity
Driver Manual
&
Instruction Manual Part Number: T28700-01
A Sierra Monitor Company
Rev. A.
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Summary of Contents for FieldServer FS-8700-01 Modbus RTU
- Page 1 A Sierra Monitor Company Driver Manual (Supplement to the FieldServer Instruction Manual) FS-8700-01 Modbus RTU & FS-8700-08 Modbus ASCII There are several similarities between these two drivers and we have incorporated them into the same manual to ensure that our information stays current. Although both drivers are referenced in this manual, they are different drivers and need to be ordered separately."...
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Page 2: Table Of Contents
Supplied by FieldServer Technologies for this driver............ 4 2.2. Provided by Supplier of 3 Party Equipment ..............4 Hardware Connections ..................... 5 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. -
Page 3: Modbus Rtu/ Modbus Ascii Description
Page 3 of 21 Modbus RTU/ Modbus ASCII Description The Modbus RTU and Modbus ASCII drivers allow the FieldServer to transfer data to and from devices over either RS-232 or RS-485 using Modbus RTU or Modbus ASCII protocol respectively. The driver was developed for Modbus Application Protocol Specification V1.1a"... -
Page 4: Driver Scope Of Supply
FS-8700-01 (T28700-01) Driver Manual 2.2. Provided by Supplier of 3 Party Equipment PART # DESCRIPTION Modbus RTU or Modbus ASCII device 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... -
Page 5: Hardware Connections
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction manual for details of the ports available on specific hardware. 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... -
Page 6: Configuring The Fieldserver As A Modbus Rtu Or Modbus Ascii Client
For a detailed discussion on FieldServer configuration, please refer to the FieldServer Configuration Manual. The information that follows describes how to expand upon the factory defaults provided in the configuration files included with the FieldServer (See “.csv” sample files provided with the FieldServer). -
Page 7: Client Side Connection Descriptors
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction manual for details of the ports available on specific hardware. 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... -
Page 8: Client Side Node Descriptors
If this parameter is not specified the default function codes will be FC 05 (Single_Coil) and FC 06 (Single_Register). Refer to Appendix A.3 for more information. Optional for Modicon 5 digit devices 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... -
Page 9: Client Side Map Descriptors
Rate at which data is polled 0-32000, 1 Optional only for Modicon_5digit addressing, and only if Single writes do not need to be forced 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... -
Page 11: Configuring The Fieldserver As A Modbus Rtu Or Modbus Ascii Server
This section documents and describes the parameters necessary for configuring the FieldServer to communicate with a Modbus RTU or Modbus ASCII Client. The configuration file tells the FieldServer about its interfaces, and the routing of data required. In order to enable the FieldServer for Modbus RTU or Modbus ASCII communications, the driver independent FieldServer buffers need to be declared in the “Data Arrays”... -
Page 12: Server Side Node Descriptors
// For devices where only 9999 registers are available in each memory area. Nodes MB_Srv_13, Modbus_RTU Modicon_5digit MB_Srv_14, Modbus_RTU Optional for Modicon 5 digit devices 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... -
Page 13: Server Side Map Descriptors
Refer to Appendix A.6 for further gone offline information. Optional only for Modicon_5digit addressing, and only if Single writes do not need to be forced 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... -
Page 15: Appendix A. Advanced Topics - Modbus Rtu
Function Code (Read) 40001 - 49999 Register 30001 - 39999 Analog _Input n/a. 10001 - 19999 Digital_Input n/a. 00001 - 09999 Coil 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... -
Page 16: Appendix A.2. Single Writes
Node_Type parameter in the Client Side Nodes Section and set it to Block_Mode. Note that block writes of length 1 are currently all that is supported. 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... -
Page 18: Appendix A.5. Connection To York Modbus Microgateway
If a Modbus Server sends two consecutive registers to the FieldServer representing either a floating point value or a 32 bit integer value, the FieldServer can combine and decode these registers back into their original format. To do this, the user must read the registers into an integer data array, and then use the Moves function to move the data to a floating point or 32 bit integer data array. -
Page 19: Appendix A.6. Node_Offline_Response
FieldServer configured as a Modbus RTU Server, when a Server Node goes offline the default behavior of the FieldServer would be to stop responding to polls for this data. This might not be what the user wants. Various options exist making it possible to signal that the data quality has gone bad without creating error conditions in systems sensitive to the default option. -
Page 20: Appendix B. Modbus Ascii - Examples Of Fieldserver Setup For Typical Clients
0’s), change the update criteria to “On Scan”. When the project is configured, run by pressing the “play” button. • Expect the Cimplicity driver to connect and poll the FieldServer for a range of valid • addresses, and then proceed to poll for just the configured Points. - Page 21 FS-8700-01_Modbus_RTU_(T28700-01) Driver Manual Page 21 of 21 THIS PAGE INTENTIONALLY LEFT BLANK 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...
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