SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
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Page | 6
BACnet Device Object Properties
Property
Value
Writable
Object_Identifier
Programmable where the instance part of the Object_Identifier is in the range of 0-
4194302. The device instance must be unique system-wide. The default value for the
device instance=153000 (Vendor_Identifier*1000 + MSTP ADD)
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Object_Name
Programmable up to 32 characters. The default value is Model_Name
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Description
Programmable up to 32 characters. The default value is "Networkable Room Sensor"
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Object_Type
Device
System_Status
Always OPERATIONAL (0)
Vendor_Identifier
Always 153
Vendor_Name
Always Neptronic
Model_Name
Example, SARGVH
Firmware_Revision
currently, 1.01
Application_Software_Version
currently, 1.25
Protocol_Version
Always 1
Protocol_Revision
Always 14
DataBase_Revision
Default = 0, will be incremented if Object_Name and/or Odject_Identifier is modified
Max_APDU_Length_Accepted
Always 480
Segmentation_Supported
(3) = No Segmentation
APDU_Timeout
3,000
Number_of_APDU_Retries
Always 3
Protocol_Services_Supported
Always 0x00, 0x0B, 0xC0, 0x02, 0x60 (i.e. a bitstring in BACnet® order)
•
readProperty, readPropertyMultiple
•
writeProperty, writePropertyMultiple
•
deviceCommunicationControl
•
reinitializeDevice
•
who-Has, who-Is
Protocol_Object_Types_
Supported
Always 0x00, 0xB4, 0x80, 0x10 (i.e. a bitstring in BACnet
®
order)
•
analog-input, analog-output
•
analog-value
•
binary-input, binary-output
•
binary-value
•
device
•
multi-state-value
Object_List
Per the standard. Because of restrictions on the size of the transmit buffers, the entire
Object_List
cannot be returned at once, rather the
Object_List
must be read, one-at-a-
time.
Device_Address_Binding
Always empty
Max_Master
Programmable in the range of 1-127 (Default value=127)
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Max_Info_Frames
Always 1
Proprietary property #1000
•
Programmable
•
This proprietary property represents the MS/TP MAC address in the range of 0-254
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Proprietary property #1001
•
Programmable
•
This proprietary property represents the MS/TP baud rate
•
Values are 0 (auto), 9600, 19200, 38400, 57600, 76800
•
Default is Auto
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Proprietary property #1002
•
Programmable
•
This proprietary property represents the period of time that an object in/out of service
will automatically return to normal. Range = 0-120 minutes (unsigned type)
•
Writing 0 means no automatic return to normal
•
Default is 15 minutes
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