User Guide
FS -8700-02 Modbus Plus     Driver Manual 
FieldServer Technologies 1991 Tarob Court, Milpitas, California 95035 (408) 262-2299 fax: (408) 262-9042 
Visit our website: www.fieldserver.com E-mail: support@fieldserver.com 
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3.  FieldServer as a Modbus Plus Server 
3.1 Hardware Connections  
Refer to the Drawings in section 4 
Configure the Modbus Plus client according to manufacturer’s instructions (refer to 
section below on examples of FieldServer setup for typical clients 
3.2 Configuration File Structure  
Refer to section 4.1 of the Instruction Manual for a description of the operation principle 
of the FieldServer. The following tables describe parameters that need to be filled out in 
the configuration file. For convenience, a few example parameters already exist in the 
supplied PRIMSERV.CSV and SECDSERV.CSV files. 
Note that * indicates an optional parameter, with the bold legal value being the default. 
3.2.1  Data Arrays 
SectionTitle  
Data_Arrays 
Column Title   Function  Legal Values 
Data_Array_Name  Provide name for Data Array  Up to 15 
alphanumeric 
characters 
Data_Format  Provides data format  INT16, INT32, BIT, 
FLOAT 
Data_Array_Length  Number of Data Objects  1-10,000 
3.2.2  Server Side Connections  
Section Title  
Connections 
Column Title   Function  Legal Values 
Adapter  Adapter name  MBP 
Internal Path  Modbus Plus data path  1 - 8 
3.2.3  Server Side Nodes 
Section Title  
Nodes 
Column Title   Function  Legal Values 
Node_Name  Provide name for node  Up to 32 
alphanumeric 
characters 
Node_ID  Node ID of virtual server node  1 – 255 
Protocol  Specify protocol used  Modbus Plus 









