| Operator Interface 
Tracer Summit, Tracer-Access, and Building Management
Network are the three options available for high level operator interface.
Operator interfaces provide global control and serve as a
communication link between the operator and the building management panels. These operator
interfaces use a distributed processing architecture, which shares information with
building control panels and unit controllers — the other two levels of a building
automation system.
Tracer Summit PC Workstation
The PC Workstation is the primary operator interface for
the Tracer Summit system. Each PC Workstation provides a graphical interface to system
information. The operator has the ability to create and edit system databases, view
current and trended information, acknowledge alarms, and perform operator overrides and
other operator transactions from the PC Workstation.
ICS Capability
The PC Workstation and the Tracer Summit software serve as
a communication link between the operator and the Building Control Units (BCUs) and other
equipment. PC Workstations can be connected and disconnected on the ARCNET local area
network (LAN) as needed. System operation is not dependent on the PC Workstation.
The Tracer Summit system uses an object-oriented database
that resides in the BCUs. Each PC Workstation contains a backup copy of the fully
distributed database. The system is scanned at regular intervals to update the database
with changes made from any PC Workstation.
Operators have the ability to view the current setup and
configuration for all unit controllers, inputs, and outputs for a selected site. This
information can be accessed by a PC Workstation onsite or remotely via a modem
connection. Operators with the proper security access can edit, add, or delete objects.
Each editor uses a graphic interface that allows for quick and easy revision to setup and
configuration values.
Software Capabilities
Graphical Operation
As a graphical interface, Tracer Summit uses icons and
other visual cues to help the operator perform standard functions. Custom graphic displays
can be created by the operator to provide a dynamic visual interface to the
software. Graphics from other software packages such as AutoCAD and Micrografx Designer
can be used by Tracer Summit. Graphic objects can be linked together to provide a logical,
visual progression through the system.
BACnet Standard Protocol Compatibility
Tracer Summit system communication is based on
ASHRAE/ANSI BACnet Standard 135-1995 which standardizes communications between the PC
Workstation, BCU, and other BACnet-compatible devices. This enables interoperation with
non-Trane building management systems and subsystems.
Application Programs
Tracer Summit offers the following capabilities:
- Time of day scheduling controls schedules for
equipment for each weekday, holidays, and exception days. Using time of day
schedules, the operator can define equipment start and stop times, optimal start and
optimal stop times, and night economize times. Each daily schedule can contain multiple
actions. Time of day schedules are easily copied from one day to another, or from one area
to another.
- Area control allows the operator to coordinate HVAC
equipment and lighting in specific areas of a building with the time of day scheduling
application. Unit controllers and binary outputs can be assigned as members to an area;
the area is then controlled instead of each member individually-making setpoint changes,
scheduling, and operator overrides easy and efficient.
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