Technical data

146 • BACnet/IP Controller 750-830
BACnet Building Controller (B-BC)
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
3.1.12.1.1.4 Trending BIBBs
These BIBBs prescribe the BACnet capabilities required to interoperably per-
form the trend value processing.
Trending-Viewing and Modifying Trends Internal-B (T-VMT-I-B)
The B device collects the trend log data records in an internal buffer. Each de-
vice-claiming conformance to T-VMT-I-B must be able to support at least one
Trend Log object.
BACnet Service Requests Execute
ReadRange x
Trending-Automated Trend Retrieval-B (T-ATR-B)
The B device notifies the A device that a trending buffer has acquired a prede-
termined number of data samples using the BUFFER_READY event algo-
rithm either intrinsically in the Trend Log object or algorithmically using an
Event Enrollment object.
BACnet Service Requests Execute
ConfirmedEventNotification x
ReadRange x
T-ATR-B compliant devices must support the Trend Log Object.