Siemens SINAMICS G120P, Operating Instructions Manual

Page: 244 / 496

Operation
6.8 Communication via RS485
Inverter cabinet units
244
Operating Instructions, 12/2014, A5E32923362A
6.8.4.2 Supported services and objects
BIBBs used by the inverter
The BIBBs (BIBB: BACnet Interoperability Building Block) are a collection of one or several
BACnet services. The BACnet services are subdivided into A and B devices. An A device
operates as client and a B device as server.
The inverter is a server and therefore operates as B device, as "BACnet Application Specific
Controller" (B-ASC).
The CU230P-2 HVAC uses the BIBBs listed below.
Overview of the BIBBs used by CU230P-2 HVAC and associated services
Short designation BIBB Service
DS-RP-B Data Sharing-ReadProperty-B ReadProperty
DS-RPM-B Data Sharing-ReadMultipleProperty-B ReadPropertyMultiple
DS-WP-B Data Sharing-WriteProperty-B WriteProperty
DM-DDB-B Device Management-Dynamic Device
Binding-B
•
Who-Is
• I-Am
DM-DOB-B Device Management-Dynamic Object
Binding-B
• Who-Has
•
I-Have
DM-DCC-B Device Management-
DeviceCommunicationControl-B
DeviceCommunicationControl
DS-COV-B Data Sharing-COV-B
•
SubscribeCOV,
•
ConfirmedCOVNotification,
•
UnConfirmedCOVNotification
The inverter can simultaneously process up to 32 SubscribeCOV services. These can all
refer to the same object instances - or different object instances.
SubscribeCOV monitors the property changes of the following objects:
● Analog Input (AIxx),
● Analog Output (AOxx),
● Analog Value (AVxx),
● Binary Value (BVxx) and
● Multi-state Input (MSIxx)
Note
SubscribeCOV services are not retentive; i.e. the master must re-initiate the SubscribedCOV
services when restarting the CU.