FieldServer FS-8700-16 - Manual (Page 15)

FS-8700-16 BACnet PTP Serial Driver Manual Page 15 of 32
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5.5.2 Driver Specific Map Descriptor Parameters
Column Title Function Legal Values
Node_Name Name of Node to fetch data from
One of the Node Names specified in
“Server Side Node Descriptors”
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.3, 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
5
*
Specify the Active Text property of the
Object Any text string of length up to 40
characters, Active
Inactive_Text
5
*
Specify the Inactive Text property of the
Object Any text string of length up to 40
characters, Inactive
Relinquish_Default
5
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.2
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.6. 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.6.
Yes, No
COV_Increment*
For a Server Map Descriptor of type AO or
AI, initialize the COV_Increment property.
Refer to Appendix A.6.
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
Description*
Specify the object’s description property.
Eg Room Temp – Refer to Appendix A.6.3
Any text string of length up to 40
characters, If not configured, defaults
to Object_Name.
5 See the BACnet DFS to determine if a particular object supports this property