Technologies Computer Driver Instruction Manual
FS-8700-16 BACnet PTP Serial Driver Manual        Page 11 of 20 
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com 
Tel: (408) 262-2299 Fax: (408) 262-9042 Toll Free: 888-509-1970  email: support@fieldserver.com 
5.4.  Server Side Map Descriptors 
5.4.1.  FieldServer Specific Map Descriptor Parameters 
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 
Data_Array_Offset  Starting location in Data Array 
0  to  data_array_length-1  as 
specified  in  “Data_Array” 
section 
Function 
Function  of  Server  Map 
Descriptor 
Server 
5.4.2.  Driver Specific Map Descriptor Parameters 
Column Title  Function  Legal Values 
Node_Name  Name of FieldServer Node 
One  of  the  node  names 
specified  in  “Server  Node 
Descriptor” above 
Data_Type  Data type in BCU 
AI,  AO,  AV,  BI,  BV, MI,  MO, 
MV
9
Object_Instance  Address of the object  0, 1, 2, 3, … 
Units  The object units 
See Appendix D 
Data_Array_Low_Scale*  Scaling zero in Data Array 
-32767 to 32767, 0 
Data_Array_High_Scale*  Scaling max in Data Array 
-32767 to 32767, 100 
Node_Low_Scale* 
Scaling  zero  in  Connected 
Node 
-32767 to 32767, 0 
Node_High_Scale* 
Scaling  max  in  Connected 
Node 
-32767 to 32767, 100 
Active Text 
Specify  the  Active  Text 
property of the Object 
Any legal BACnet ASCII string 
Inactive Text 
Specify  the  Inactive  Text 
property of the 
Any legal BACnet ASCII string 
Relinquish Default 
Specify  the  startup 
Relinquish_Default  Property 
value for this Object 
Any legal BACnet ASCII string 
Custom_Type 
This  over-writes  the 
Data_Type  with  a  numerical 
value  for  the  Data_Type.  e.g. 
Analog Value = 2 
1..1023 
Custom_Prop 
This  over-writes  the  Property 
with  a  numerical  value  for  the 
property. e.g. Present Value = 
85 
1..4194303 
9
 Refer to Appendix A.1 for further information. 










