Siemens SINAMICS G120 - Page 175

Configuring the fieldbus
7.6 Communication via RS485
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
175
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.
Code numbers of the object types supported in BACnet
Object type
Code number for BACnet
object type
Object type
Code number for BACnet
object type
Device Object
8
Analog Input Object
0
Binary Input Object
3
Analog Output Object
1
Binary Output Object
4
Analog Value Object
2
Binary Value Object
5
Multi-State Input Object
13