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FS-8700-73 BACnet MSTP Driver Manual
4.5.
Client Side Map Descriptors
4.5.1.
Column Title
Map_Descriptor_Name
Data_Array_Name
Data_Array_Offset
Function
4.5.2.
Column Title
Node_Name
Data_Type
Object_Instance
Property*
Data_Array_Low_Scale*
Data_Array_High_Scale*
Node_Low_Scale*
Node_High_Scale*
Write_Priority
Custom_Type
Custom_Prop
4.5.3.
Column Title
Scan_Interval*
9
Refer to Appendix A.1 for further information.
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FieldServer Related Map Descriptor Parameters
Name
Descriptor
Name
where data is to be stored
in the FieldServer
Starting location in Data
Array
Function of Client Map
Descriptor
Driver Related Map Descriptor Parameters
Name of Node to fetch data
from
Data type in FieldServer
Address of object
The BACnet property to be
read
Scaling zero in Data Array
Scaling max in Data Array
Scaling zero in Connected
Node
Scaling max in Connected
Node
Allows the driver to specify
the write priority used to write
an
output.
Appendix B.2
This
Data_Type with a numerical
value for the Data_Type. e.g.
Analog Value = 2
This over-writes the Property
with a numerical value for the
property. e.g. Present Value
= 85
Timing Parameters
Rate at which data is polled
Function
of
this
Map
Up
characters
of
Data
Array
One of the Data Array names
from "Data_Array" section
0 to Data_Array_Length-1 as
specified
section
Rdbc, Wrbc, Wrbx
Function
One of the node names
specified
Descriptor" above
AI, AO, AV, BI, BV, MI, MO,
MV
0, 1, 2, 3, ...
Present_Value
-32767 to 32767, 0
-32767 to 32767, 100
-32767 to 32767, 0
-32767 to 32767, 100
1..16, 16
See
also
over-writes
the
1..1023
1..4194303
Function
Page 10 of 24
Legal Values
to
32
alphanumeric
in
"Data_Array"
Legal Values
in
"Client
Node
9
Legal Values
0-32000, 2s
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