Computrols Building Automation Software makes building control simple.

CBAS Interface

Computrols Building Automation Software (CBAS) was developed to provide complete control for even the largest buildings, yet CBAS is incredibly simple to learn and manage. Whether you need to access your building from inside, on the Web, or even on your cell phone, we have the solutions.



Choose a CBAS package to learn more about it.

CBAS Windows »


CBAS Windows is a full-featured version of CBAS which will communicate with an unlimited amount of hardware and software points.

It comes with the CBAS Windows server license, plus two additional CBAS Workstation licenses. Therefore, an original CBAS Windows installation can have up to three functional computers on a network. More systems can be added as needed. The workstations (we call them Graphical Workstations or GWs) can function remotely via the Internet.


Auto-tuning PID Control Loops
No need to grind over calculations to make sure you don’t overshoot setpoints. The decisions are made for you. You don’t even need to know what PID means!

English Language If/Then Logic
No codes to memorize. As the needs of your facility change, it’s simple to reprogram CBAS.

Multiple Views
CBAS offers three viewing options: hardware view, text view, and graphics view. Each offers a unique and thorough view of your system as a whole.

Internet Capability
CBAS comes equipped with an Internet protocol (TCP/IP) that can be used for controlling your system from anywhere in the world. TCP/IP also allows for networking multiple workstations.

Password Customization
Use custom passwords to ensure the integrity of vital data. Provides the system administrator with a complete list of lockouts to choose from.

Controller Downloading
Allows the head-end to upload all information to the controllers. This enables the controller to be truly stand-alone.

Parts & Accessories

CBAS Add-ons

Provides tenant overtime requests via web.

License to add one workstation to a CBAS system.

CBAS Web »


CBAS-Web is building automation via the Internet. This is Computrols’ premier web-enabled building automation product. CBAS Web provides a point monitoring and command interface to any Professional or Enterprise CBAS DPU, as well as providing programming features including schedules and overtime. With CBAS Web, you possess a professional, clean, and easy to use interface to CBAS.

CBAS-Web goes beyond the monitor and automation tasks of CBAS. You’ll find a rich assortment of additional useful features:

  • A context-sensitive help resource
  • Text and bar graph reports–in-place sortable by any field
  • Per-user customizable preferences (color-scheme, default views, point status update rate, and number of points per screen)
  • An easily customizable look and feel–the administrator can change logos and even the tagline at the top of the screen
  • User-to-user, or user-to-group messaging
  • One-click backups
  • The ability to program any number of CBAS DPUs into CBAS-Web, allowing a centralized view for points across many job sites or installations
  • An automated security sentry that will message the administrator in the event of suspicious behavior. Example: Repeatedly trying to access non-accessible files, or incorrect passwords being entered.



CBAS-Web.pdf (329 kb)
CBAS-Web is building automation via the Internet. This is Computrols’ premier web-enabled building automation product.

CBAS-Web-Accounting-Module.pdf (116 kb)
The CBAS-Web Accounting Module provides a complete invoicing solution for CBAS-Web.

CBAS-Datasheet.pdf (219 kb)
CBAS, the simplest building automation system software to install, program, maintain, and operate. CBAS software is capable of seamlessly integrating with various manufacturers’ field controllers.

CBAS-Mobile.pdf (448 kb)
CBAS-Mobile has the power to monitor and control your building from a truly mobile web-enabled device. Whether a cell phone or PDA, you have the instant access you need no matter your schedule.

CBAS-Innovations.pdf (514 kb)
This three-page overview of CBAS features shows you first hand several popular features in CBAS via screen captures of the actual software being used.

Computrols-CBAS-Web-Manual.pdf (2.3 MB)
Official user manual for CBAS-Web. Also features the CBAS-Mobile user manual.

Computrols-CBAS-Manual.pdf (3.8 MB)
User manual for CBAS (Computrols Building Automation System) Software.

CBAS-Hot-Keys.pdf (183 kb)
Hot Keys for CBAS Graphics

CBAS_Network_Architecture.pdf (151 kb)

CBAS-Starter-Kit.pdf (438 kb)
The CBAS Starter Kit is a self-contained portable platform available to Computrols Distributors for the purpose of showcasing the technology available in the Computrols Internet Appliance line of Direct Digital Controllers.

CBAS-Sequencer.pdf (768 kb)
A sequencer takes several binary points and combines them into a single continuous analog output. This feature can be found on the Point Program Screen of a Software Analog Output Setpoint in CBAS.

CBAS-Email-Alarm-Editor.pdf (560 kb)
Included to accommodate CBAS systems that have high-speed Internet service instead of dialup service, you can now send an email rather than just a page. The email message that is sent includes the name of the point and the status of that point. Read this document to see how.

CBAS-and-Veris-Hawkeye.pdf (67 kb)
Many building management companies are interested in monitoring energy usage, either for tenant spaces or for the entire building. Monitoring can be included in their CBAS system through the use of Veris Hawkeye meters.

CBAS Graphics

Visio Graphics Library – 2011 (ZIP archive, 6.41 MB)
A basic Microsoft Visio library of HVAC graphics for CBAS application.

CBAS Basic Animations (ZIP archive, 380 kb)
A library of basic HVAC animations for CBAS.