B.7 BACnet Objects Supported
u
Present Value Access
The Present Value (PV) of BACnet objects can always be read. In addition, some PVs can be written or commanded. A
commandable PV is similar to writing the value, but the value is actually written into a priority array. The value occupying
the highest priority in the array will be used by the drive. The convention for showing how the PV is accessed is shown in
and will be noted for the PV of each object.
Table B.3 Present Value Access Values
PV Access
Name
Description
C
Commandable
Value written to a priority array. The highest priority value in the array is then written to the drive.
R
Readable
Value is read-only
W
Writable
Value written to the drive
u
Supported Properties of Objects
Table B.4 Object Properties
Property
Object Type
Device
Analog
Input
Analog
Output
Analog
Value
Binary
Output
Binary
Output
Binary
Value
Object_Identifier
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Object_Name
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Object_Type
Yes
Yes
Yes
Yes
Yes
Yes
Yes
System_Status
Yes
–
–
–
–
–
–
Vendor_Name
Yes
–
–
–
–
–
–
Vendor_Identifier
Yes
–
–
–
–
–
–
Model_Name
Yes
–
–
–
–
–
–
Firmware_Revision
Yes
–
–
–
–
–
–
Protocol_Version
Yes
–
–
–
–
–
–
Protocol_Revision
Yes
–
–
–
–
–
–
Protocol_Services_Supported
Yes
–
–
–
–
–
–
Protocol_Object_Types_Supported
Yes
–
–
–
–
–
–
Object_List
Yes
–
–
–
–
–
–
Max_ADPU_Length_Accepted
Yes
–
–
–
–
–
–
Segmentation_Supported
Yes
–
–
–
–
–
–
Local_Time
Yes
–
–
–
–
–
–
Local_Date
Yes
–
–
–
–
–
–
ADPU_Timeout
Yes
–
–
–
–
–
–
Number_Of_ADPU_Retries
Yes
–
–
–
–
–
–
Max_Masters
Yes
–
–
–
–
–
–
Max_Info_Frames
Yes
–
–
–
–
–
–
Device_Address_Binding
Yes
–
–
–
–
–
–
Database_Revision
Yes
–
–
–
–
–
–
Present_Value
–
Yes
Yes
Yes
Yes
Yes
Yes
Status_Flags
–
Yes
Yes
Yes
Yes
Yes
Yes
Event_State
–
Yes
Yes
Yes
Yes
Yes
Yes
Reliability
–
Yes
Yes
Yes
Yes
Yes
Yes
Out_Of_Service
–
Yes
Yes
Yes
Yes
Yes
Yes
Units
–
Yes
Yes
Yes
–
–
–
Priority_Array
–
–
Yes
Yes
–
Yes
Yes
Relinquish_Default
–
–
Yes
Yes
–
Yes
Yes
Polarity
–
–
–
–
Yes
Yes
–
B.7 BACnet Objects Supported
256
YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual