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 
Page  4
2.2.4  Client Side Map Descriptors  
Section Title  
Map_Descriptors 
Column Title   Function  Legal Values 
Map_Descriptor_Name  Name of this Map Descriptor  Up to 32 
alphanumeric 
characters 
Data_Array_Name  Name of Data Array where 
data is to be stored in the 
FieldServer 
One of the Data Array 
names from “Data 
Array” section above 
Data_Array_Offset  Starting location in Data 
Array 
0 to maximum 
specified in “Data 
Array” section above 
Function  Function of Client Map 
Descriptor 
RDBC 
Node_Name  Name of Node to fetch data 
from 
One of the node 
names specified in 
“Client Node 
Descriptor” above 
Address  Starting address of read block  40001, 30001, etc 
Length  Number of items to read  1 - 125 
Data_Array_Low_Scale*  Scaling zero in Data Array  -32767 to 32767, 
default 0 
Data_Array_High_Scale*  Scaling max in Data Array  -32767 to 32767, 
default 100 
Node_Low_Scale*  Scaling zero in Connected 
Node 
-32767 to 32767, 
default 0 
Node_High_Scale*  Scaling max in Connected 
Node 
-32767 to 32767, 
default 100 









