Building Management Systems - Page 13

• VAV air system control coordinates air handling units and VAV Terminal Units within a building. VAV Terminal Units are assigned to the air handling unit that supplies air to the terminal unit, then VAV air system control coordinates system startup and shutdown to assure proper static pressure control.
• Custom programming language (CPL) allows the BCU to be customized for the application(s) it provides. CPL routines can be created to accommodate any non-standard control strategies and are used to sequence equipment, calculate setpoints and values, and perform shutdown sequences. CPL routines can be edited, downloaded, uploaded, and tested while the PC Workstation is online or offline with the BCUs.
• Reports and trends allows the operator to view system data in two primary reports; a live or log report, or a historical trend or report. Live reports provide a record of system conditions at one point in time and are used to look at ICS equipment status, system logs, and to view monthly conditions. Historical reports are used to look at numerous data samples over a fixed time interval. Trends, monthly energy reports, refrigerant management reports, and indoor air quality reports are examples of historical reports. All reports can be viewed on screen, printed as shown on screen, or exported to a spreadsheet program to create charts and graphs.
• Diagnostics ensure that devices such as modems, printers, and communication links are operating properly.
• Dynamic data exchange (DDE) provides the ability for Windows or 0S/2 to request data from Tracer Summit in real time. The operator can use DDE to observe, store, and view system data in a graphical program.
• Programming interfaces with PCM and UPCM Edit software. This software allows the operator to edit the DDC loops and program logic in these programmable controllers.
• Remote communications allows a PC Workstation to access a Tracer Summit site remotely using standard telephone modems. This enables an operator to change setpoints from home, or for service technicians to change configuration from their office as if they were at the site. The remote communication function also provides the ability to dial out alarms. The Tracer Summit system can be configured to dial out alarms to any number of remote locations based on alarm conditions, time, date, or other operator-specified criteria. If the remote PC Workstation or pager is unavailable, the system will re-try, or at the operator’s preference, try a different PC Workstation or pager. A single modem located in any BCU on the system provides remote access to the entire system. Modems may be installed in multiple BCUs for additional access ports, if desired.
• Security. A sophisticated password system protects the Tracer Summit system.
• Chiller plant control allows the operator to coordinate multiple chillers and their related equipment (pumps, valves, cooling towers, ice tanks, etc.) to supply cold water to the system. Multiple chillers can be sequenced to balance run times between chillers and to improve overall system operating efficiency. This application also enhances chiller alarm processing and failure recovery, provides status and feedback information, optimizes energy usage, and helps in chiller maintenance and repair.

PC Workstation Specifications

Tracer Summit PC Workstation minimum requirements are:

Hardware

• 80486 or Pentium processor
• 12 MB RAM (recommended 16 MB)
• 200 MB hard drive
• 1.44 MB, 3.5" diskette drive
• ARCNET communications card or portable LAN adapter
• Serial port for modem
• Parallel port for printer
• VGA or SVGA color monitor
• Mouse
• Keyboard
• Optional:
  • – External or internal 14.4 or 28.8 U.S. Robotics Sportster modem
  • — Parallel printer

Software

• Tracer Summit software (includes Paint Shop Pro)
• IBM 0S/2 version 2.11 or 3.0