BAScontrol Open Controllers Built on Sedona

BAScontrol Open Controllers with Sedona Wiresheet

The Advantages of a BAScontrol Open Controller

Contemporary Controls has always supported open protocols like BACnet, but BACnet does not provide control, only a standardized method for communications. Having BACnet is not sufficient when you are locked out of a job due to a proprietary programming language, licensing restrictions, or a proprietary programming tool only available to "partners". The BAScontrol Series is Contemporary Controls' way of providing a truly open controller by having:

  • An open communications network in IP Ethernet
  • An open industry supported building automation protocol in BACnet
  • An open control language that is license-free in Sedona
  • A free programming tool that is available to all without restriction in the Sedona Application Editor

The BAScontrol Series of unitary controllers are ideal for general purpose applications, such as controlling fan coils, heat pumps, lead-lag pump sequences, and constant volume air-handlers and RTUs. The BAScontrollers remain popular with system integrators, mechanical OEMs, and HVAC training institutions because of their license-free open architecture and free toolset. These controllers offer simple webpage configuration, function block Sedona programming, and are freely programmable using Contemporary Controls' BAScontrol Toolset. In addition, pre-built Sedona applications with included documentation are available to speed project implementation.

Rugged design, low profile, and wide temperature operation make the series suitable for indoor or outdoor use. The units are powered from a 24VAC/VDC source. All models support BACnet/IP server operation with newer models supporting BACnet/IP client functionality as well. An MS/TP model supports BACnet client/server operation over BACnet/IP or BACnet MS/TP.

All BAScontrol unitary controllers are programmed using Sedona—a license-free function block programming language intended for implementing control schemes. The Sedona language facilitates component-oriented programming where components (deployed in kits) are assembled onto a wiresheet, configured, and then interconnected to create applications.

The BAScontrol Toolset is a free set of software tools to configure, test, emulate, and archive controller operation on a Windows PC. The BAScontrol Toolset includes:

  • Sedona Applications Editor (SAE)—an editing tool used to create function block (component) wiresheet applications in the Sedona environment. This OpenJDK-based Sedona tool can be used by individuals who do not have access to a Sedona tool and need to program Sedona devices.
  • BASemulator—a utility used to emulate controller operation on a Windows PC.
  • BASbackup—a project utility which provides a convenient way of storing/restoring and replicating real or emulated controller settings and configurations as well as Sedona wiresheet applications.

The custom Sedona components are designed to specifically target HVAC core applications. These Pre-Built Applications allow users to easily utilize the BAScontrollers. In addition to developing custom Sedona components, Contemporary Controls maintains a library of typical HVAC applications which can be modified using the BAScontrol Toolset.

Contemporary Controls understands that learning to program unitary controllers can be a challenging hurdle and has developed training materials to make it easier to use the products. As a Sedona developer, we are committed to open controls and work hard to make sure we can fully support our products and applications. Use the resources on the left to learn more about Sedona, as well as the tools and applications we have developed for BAScontrol users. If you have questions, don't hesitate to email or call us.