FieldServer FS-8700-73 - Manual (Page 41)

FS-8700-73 BACnet MSTP Driver Manual Page 41 of 48
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Appendix D. Reference
Appendix D.1. Object_Type Legal Values – Abbreviation Descriptions
AI ANALOG_INPUT
AO ANALOG_OUTPUT
AV ANALOG_VALUE
BI BINARY_INPUT
BO BINARY_OUTPUT
BV BINARY_VALUE
MI MULTI_STATE_INPUT
MO MULTI_STATE_OUTPUT
MV MULTI_STATE_VALUE
NC
NOTIFICATION_CLASS_OBJECT
Appendix D.2. Property Legal Values
Legal Value Description
Object_Identifier
This property is a numeric code that is used to identify the object. It is unique within the
BACnet Device that maintains it.
Object_List
Relevant to Device Object Type. This property is a BACnetARRAY of Object_Identifiers, one
Object_Identifier for each object within the device that is accessible through BACnet
services. An Object_Identifier is composed of Object Type and Object Instance and must
be unique within a BACnet Device, e.g. Object Type = Analog Input, Object Instance = 3
Present_Value This property contains the present value of the Input / Output / Value
Object_Name
Character string providing the name of a BACnet object. The set of characters used in the
Object_Name is restricted to printable characters. The Object_Name is determined by the
Map_Descriptor_Name.
Description
Character string describing a BACnet object. This can be defined by the user to give
additional detail about the Object.
Out_of_Service
The Out_Of_Service property, of type BOOLEAN, is an indication whether (TRUE) or not
(FALSE) the physical input that the object represents is not in service. This means that the
Present_Value property is decoupled from the physical input and will not track changes to
the physical input when the value of Out_Of_Service is TRUE. In addition, the Reliability
property and the corresponding state of the FAULT flag of the Status_Flags property shall
be decoupled from the physical input when Out_Of_Service is TRUE. While the
Out_Of_Service property is TRUE, the Present_Value and Reliability properties may be
changed to any value as a means of simulating specific fixed conditions or for testing
purposes. Other functions that depend on the state of the Present_Value or Reliability
properties shall respond to changes made to these properties while Out_Of_Service is
TRUE, as if those changes had occurred in the physical input.
Event_State
The Event_State property, of type BACnetEventState, is included in order to provide a way
to determine if this object has an active event state associated with it. If the object
supports intrinsic reporting, then the Event_State property shall indicate the event state of
the object. If the object does not support intrinsic reporting, then the value of this property
shall be NORMAL. Other values: FAULT, OFF-NORMAL, HIGH-LIMIT, LOW-LIMIT, LIFE-
SAFETY-ALARM
Units This property contains the units associated with the Present_Value property.