Glossary - Trane BCI-I Integration Manual

Glossary

A
ASHRAE
See American Society of Heating, Refrigeration, and Air-
conditioning Engineers
American Society of Heating, Refrigeration, and Air-
conditioning Engineers
An international organization of 50,000 persons with
chapters throughout the world. The Society is organized
for the sole purpose of advancing the arts and sciences of
heating, ventilation, air conditioning and refrigeration. It
benefits the public with its research, standards writing,
continuing education, and publications.
B
BACnet™
See Building Automation Control network
BACnet interoperability building blocks
A block of BACnet application services that tells vendors
what BACnet services must be implemented to provide
specific device functionality. The BIBBs are grouped
together into BACnet device profiles.
BACnet object
An abstract representation of the physical point or points
where data is input from or output to an I/O device. Each
object may have several BACnet properties that describe
the status of that object.
baud rate
The number of signaling elements that occur each second
during electronic data transmission. At slow speeds, baud
indicates the number of bits per second that are
transmitted. For example, 500 baud means that 500 bits
are transmitted each second (abbreviated 500 bps). At
higher speeds, multiple bits may be encoded with each
electrical change. For example, 4,800 baud may allow
9,600 bits to be sent each second. Data transmission
rates at high speeds are generally expressed in bits per
second (bps) rather than baud. For example, a 9,600 bps
modem may operate at only 2,400 baud.
BIBB
See BACnet interoperability building blocks
Building Automation Control network (BACnet and
ANSI/ASHRAE Standard 135-2004)
An interoperable protocol developed specifically for the
building controls industry. The American National
Standards Institute named it as a standard and Trane
ACC-SVP01B-EN • BCI-I Integration Guide
advocates BACnet protocol for use in system-level control
devices.
device
A device is a standard BACnet object as defined by
ASHRAE Standard 135-2004.The Tracer UC800 contains
the BACnet object.
Device ID
The Device ID is used to uniquely identify each BACnet
Device and it can be in the range of 0 to 4194302. There
cannot be more than one device using the same Device
ID. Each of the sample applications operate as a device
and requires its own device id which defaults to zero.
I
interoperability
The ability to integrate equipment from different vendors
into a comprehensive automation and control system. In
addition, digital communications between products
designed independently, but designed to the same
communication standard.
P
protocol
A set of rules (language) that governs the exchange of
data over a digital communications system.
S
stand-alone operation
Equipment is running in a stand-alone mode when all
control is provided by the equipment's electronic control
system. The system controls the building environment to
a local set of configuration and setpoint values. It monitors
the environmental conditions via sensors that are
physically wired to the unit's control system.
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