Press Release

30th March 2014
Beckhoff at Light + Building 2014: Hall 11.0, Booth C56
Building controllers: High scalability delivers excellent price-performance ratio
BACnet controller certified for Revision 12
The international BACnet standard, which ensures interoperability between building automation devices from different manufacturers, is steadily gaining in importance as new features are being added. Revision 12 of BACnet delivers a series of innovations which Beckhoff has already implemented in its BACnet stack for TwinCAT. The rail-mountable Embedded PCs CX8091, CX9020, CX5010 and CX5020 are now certified as per BACnet standard ISO 16484:2012, Rev 12. BACnet/IP can be used on all PC-based Beckhoff hardware platforms as a universal Ethernet protocol.
To achieve intelligent automation that encompasses all of a building's technical systems, the controller must have all the information from each component at its disposal in order to perfectly coordinate them. Beckhoff provides the required basic software and hardware for such applications: the Bus Terminal system with 400 different I/O components that supports all common sensors and actuators, scalable controllers ranging from Bus Terminal controllers to Embedded PC devices to powerful industrial PCs, and the TwinCAT automation software with its building automation PLC libraries that let you map all building functions in software. Open interfaces let you use all building automation–relevant subsystems, such as KNX/EIB, LON, DALI, DMX, MP-Bus, M-Bus, SMI, Modbus, and EnOcean.

Transparent integration of BACnet
Since having a standards-based communication architecture is the key to vendor-independent building automation, Beckhoff has placed special emphasis on the transparent integration of BACnet when it designed its TwinCAT automation solution.

The rail-mountable Embedded PCs CX8091, CX9020, CX5010 and CX5020 are now certified as per BACnet standard ISO 16484:2012, Rev. 12. The controllers with stackable I/O levels provide scalable performance, ranging from the CX8091, which supports up to 250 BACnet objects in typical control applications, to the CX5020, which is recommended for applications with up to 3,000 BACnet objects. If only BACnet operations are involved, the potential number of objects is even higher. Thanks to extensive performance improvements in comparison with Rev. 6, the controllers are now capable of processing more than twice the number of BACnet objects with without change in theprocessor load. Certification as per Rev. 6, however, continues to be available for the CX9001 and CX9010 devices.
The precise scalability of the Beckhoff building controllers on the basis of performance classes provides significant cost benefits. If the users need more processor performance, they can simply switch to the next controller platform so that price and performance stay in balance at all times.

Revision 12 fully supported
With new features and new services, the implementation of BACnet Revision 12 in TwinCAT BACnet/IP provides a series of benefits in building automation applications. Besides many enhancements in alarm and event services, new BACnet object types such as Pulse Converter, Accumulator, Averaging, Event Enrolment and Structured View are available. The device management was enhanced as well. In addition, Revision 12 includes several smaller improvements, such as support for various symbol set encodings, information about device restarts, and enhanced diagnostic options.

In-house development of the BACnet stack and the experience Beckhoff gathered in a multitude of projects provide the company with the deep expertise customers expect. The PLC programming as per IEC 61131-1 supports structured BACnet function blocks for efficient project execution. And the TwinCAT BA PLC libraries will soon provide the systems integrator with established and tested basic functions in the areas of closed-loop control and signal processing, as well as special mathematical functions, fault signal processing and general system functions.

 

Press picture

  • With new features and new services, BACnet Revision 12 in TwinCAT BACnet/IP provides many new benefits in building automation applications.

    Picture caption:

    With new features and new services, BACnet Revision 12 in TwinCAT BACnet/IP provides many new benefits in building automation applications.

Further information:

Light+Building 2014

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