5.3.2 Driver Specific Map Descriptor Parameters - FieldServer FS-8704-06 Driver Manual

FS-8704-06 BACnet IP Driver Manual

5.3.2 Driver Specific Map Descriptor Parameters

Section Title
Map Descriptors
Column Title
Node_Name
Object_Type
(Alias = Data_Type)
Object_Instance
(Alias = Address)
Property
Data_Array_Low_Scale*
Data_Array_High_Scale*
Node_Low_Scale*
Node_High_Scale*
Length*
Array_Index*
Write_Priority*
Linked_Map_Descriptors*
Length*
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Function
Name of remote Server Node.
Type of object. Refer to Appendix D.1 for more
information.
Instance of the object on the device.
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
Used to create an array of sequential
Object_Instances on an Object_Type.
When referencing Multistate properties, allows
the user to specify the index of the property to
be read. If 1 is specified, the first one will be
read, if 2 is specified, the second will be read,
etc. If 0 is specified, the driver will return the
total number (count) of array items linked to
the property. If the parameter is not specified,
a list of all items will be returned.
Appendix A.3
Allows the driver to specify the write priority
used to write an output.
This parameter allows the linking of Map
Descriptors to an active read or write Map
Descriptor in order
ReadPropertyMultiple or WritePropertyMultiple
transaction. Refer to Appendix A.10
When the optional Length parameter is set to a
value N, the Map Descriptor will include N
consecutive instances
Object_Type. For example, if a Map Descriptor
specifies Object_Type, Address 4 and Length 3,
this means that the AO instances 4, 5 and 6 will
be included in the read or write transaction. The
corresponding Data Array values are in
consecutive positions in the Data Array, starting
at the specified Data_Array_Offset.
Legal Values
One
specified in Section 5.2
AI, AO, AV, BI, BO, BV, MI, MO,
MV, NC
0, 1, 2, 3, ...4194303
Refer to Appendix D.3
-32767 to 32767, 0
-32767 to 32767, 100
-32767 to 32767, 0
-32767 to 32767, 100
1 to max point count of the
FieldServer, 1
0 to max number of array items
in the BACnet Property, -
Refer to
1..16, 16
The name of a previously defined
to construct a
active Map Descriptor, -
of the specified Any positive integer that falls
between
Data_Array_Offset
Data_Array_Length as specified
in section 4, -
Refer also to Appendix A.10
Page 10 of 57
of the Node_Names
the range of the
and the