The BACnet-Handler is explicitly focused on intrinsic reporting and not on COV reporting. The network connection to the BACnet server is monitored periodically by the OIS server.
Display of the Fixed Properties of the Device Object
The device object of the Cu-Handler supports all attributes that are marked with an x in the Evaluable by the Server column.
Property | Value | Conform. Code | Evaluable by the Server |
|---|---|---|---|
Object_Identifier | Configurable | R | x |
Object_Name | Random unique ID | R | x |
Object_Type | DEVICE | R | x |
System_Status | OPERATIONAL | R | x |
Vendor_Name | "Siemens Building Technologies" | R | x |
Vendor_Identifier | 7 | R | x |
Model_Name | "Cu-Handler BACnet" | R | x |
Firmware_Revision | ”” | R |
|
Application_Software_Version | “ 3.0” | R | x |
Location | - | O |
|
Description | - | O |
|
Protocol_Version | 1 | R | x |
Protocol_Revision | 12 | R | x |
Protocol_Services_Supported | See below | R | x |
Protocol_Object_Types_Supported | {DEVICE} | R | x |
Object_List | Device object | R | x |
Structured_Object_List | - | O |
|
Max_APDU_Length_Accepted | 1476 | R | x |
Segmentation_Supported | SEGMENTED_BOTH | R | x |
Max_Segments_Accepted | 128 | O | x |
VT_Classes_Supported | - | O |
|
Active_VT_Sessions | - | O |
|
Local_Time | Variable | O | x |
Local_Date | Variable | O | x |
UTC_Offset | Variable | O | x |
Daylight_Savings_Status | False | O | x |
Profile_Name | -7-Device | O |
|
Number_Of_APDU_Retries | 3 | R | x |
Time_Synchronization_Recipients | - | O |
|
Max_Master | - | O |
|
Max_Info_Frames | - | O |
|
Device_Address_Binding | {} | R | x |
Database_Revision | 0 | R | x |
Configuration_Files | - | O |
|
Last_Restore_Time | - | O |
|
Backup_Failure_Timeout | - | O |
|
Active_COV_Subscriptions | - | O |
|
Slave_Proxy_Bindings | - | O |
|
Last_Restart_Reason | - | O |
|
Time_Of_Device_Restart | - | O |
|
Restart_Notification_Recipients | - | O |
|
UTC_Time_Synchronization_Recipients | - | O |
|
Time_Synchronization_Interval | - | O |
|
Align_Intervals | - | O |
|
Services that Are Used and Supported
The services available in BACnet are divided into functional groups using BIBBS. For each of these groups two descriptions are created: one from a BACnet client's (A) point of view and one from a BACnet server's (B) point of view. The list of supported client services is stored in the Protocol_Services_Supported property of the device object.
Services initiated by the BACnet client (A):
BIBBS | Service | Initiate | Perform | Purpose |
|---|---|---|---|---|
DM-DDB-A | Who-Is | X |
| Supervision |
| I-Am |
| X |
|
DM-DOB-B | Who-Has |
| X | Object identification |
| I-Have | X |
|
|
DM-LM-A | AddListElement | X |
| Entry of Cu-Handler in the Notification Class object |
| RemoveListElement | X |
|
|
AE-N-A | ConfirmedEventNotification |
| X | Event |
| UnconfirmedEventNotification |
| X |
|
DS-RP-A | ReadProperty | X |
| Restart and object update |
DS-RP-B | ReadProperty |
| X |
|
DS-RPM-B | ReadPropertyMultiple |
| X |
|
AE-ACK-A | Acknowledge Alarm | X |
| Event acknowledgement |
DS-WP-A | WriteProperty | X |
| Sending commands |
DS-WP-B | WriteProperty |
| X |
|
AE-LS-A | LifeSafetyOperation | X |
| Sending commands |
AE-INFO-A | GetEventInformation | X |
| Query active events upon restart |