Driver specific map descriptor parameters – FieldServer FS-8704-06 User Manual
Page 16
FS-8704-06 BACnet IP Driver Manual
Page 16 of 57
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6.4.2 Driver Specific Map Descriptor Parameters
Section Title
Map Descriptors
Column Title
Function
Legal Values
Node_Name
Name of Node to fetch data from
One of the Node Names
specified in Section 6.3
Object_Type
(Alias = Data_Type)
Data type in Controller
AI, AO, AV, BI, BO, BV, MI, MO,
MV, NC. Refer to Appendix
D.1.
Object_Instance
(Alias = Address)
Instance of the Object on the Device.
0, 1, 2, 3, …4194303
Units*
The object units
Refer to Appendix D.4, m2
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
7
*
Specify the Active Text property of the Object
Any text string of length up to
40 characters, Active
Inactive_Text
Specify the Inactive Text property of the Object
Any text string of length up to
40 characters, Inactive
Relinquish_Default
Specify the value to be returned as Present_Value
on startup or when control is relinquished. Must be
specified for outputs. Refer to Appendix D.3
Any Float value
Length*
Used
to
create
an
array
of
sequential
Object_Instances on an Object_Type.
1 to max point count of the
FieldServer, 1
Notification_Class*
Specify
the
Mapdescriptor_Name
of
the
Notification_Class Object that manages Intrinsic
Reporting for this Map Descriptor. Refer to
Appendix A.8.
One
of
the
configured
Mapdescriptor_Names of type
NC
(Notification
Class).
Objects are not available to
any NC if left out.
Ack_Required*
For a Notification_Class Object, specify whether
EventNotifications
require
a
user
Acknowledgement. Refer to Appendix A.8.
Yes, No
COV_Increment*
For a Server Map Descriptor of type AO or AI,
initialize the COV_Increment property. Refer to
Appendix A.8.
Any Float value, 0
Input_alarm_State*
For binary points the user can specify which of the
states (0 or 1) to regard as an alarm state.
0, 1
7
See the BACnet DFS to determine if a particular object supports this property