86
Data Type
Fixed at 16-Bit Unsigned.
Bitmask
Specifies which bit(s) in the 16-bit value designated by the “Parameter” that the binary object will map to.
This mechanism allows up to 16 binary objects to be simultaneously assigned to one parameter (each
binary object mapping to a single bit of that 16-bit word). It is possible to map binary objects to multiple
bits within the designated parameter.
The effect of the “Bitmask” field when writing: When the present value property of a binary object is set
to “active” by a BACnet client, then the bit(s) in the designated parameter indicated by the bitmask are
set. Similarly, when the present value property of the object is set to “inactive”, then the bit(s) in the
designated parameter indicated by the bitmask are cleared.
The effect of the “Bitmask” field when reading: When the present value property of a binary object is
read by a BACnet client, the bitmask is used to determine the active/inactive state of the object by
inspecting the value in the designated parameter at the bit location(s) indicated in the bitmask. If all of
the bit locations at the designated parameter are set, then the object’s state will be returned as “active”.
Else, the object’s state will be returned as “inactive”.
Active Text
Specifies the description of the object’s “active” state. Enter a string of up to 32 characters in length. This
field is optional and may be left blank.
Inactive Text
Specifies the description of the object’s “inactive” state. Enter a string of up to 32 characters in length.
This field is optional and may be left blank.
Relinquish Default
Defines the default value to be used for an object’s present value property when all entries in the
object’s priority array are NULL.
9.4.14 Multi-state Input Object Settings
Object Name
The name of the BACnet object. Enter a string of between 1 and 32 characters in length. All object
names must be unique within a node.
Instance
The BACnet object’s instance number. Enter a value between 0…4194302 (0x0…0x3FFFFE).
Parameter
The inverter parameter (in section 4) that the BACnet object’s present value will access.
Data Type
Fixed at 16-Bit Unsigned.
9.4.15 Multi-state Output Object Settings
Object Name
The name of the BACnet object. Enter a string of between 1 and 32 characters in length. All object
names must be unique within a node.
Instance
The BACnet object’s instance number. Enter a value between 0…4194302 (0x0…0x3FFFFE).
Parameter
The inverter parameter (in section 4) that the BACnet object’s present value will access.
Data Type
Fixed at 16-Bit Unsigned.