In order to make the engineering of applications in building automation as efficient and simple as possible, Beckhoff has developed an extensive construction kit of software tools, libraries and application samples. The basic tool is the free programming environment TwinCAT Engineering (TE1000). It allows free programming according to IEC 61131-3 and provides the system user with maximum flexibility in solving tasks.

The basic functions for the automation of all technical finishing systems of building automation – from simple logic blocks and PID controllers to tracking of the blind slats in relation to the sun's position – are included in the TwinCAT 3 Building Automation library (TF8040). With the function blocks from the TwinCAT 3 Building Automation library, system integrators have an extensive portfolio of ready-to-use applications, so-called templates, at their disposal. These are tried-and-tested and well-documented program blocks, ranging from applications in heating, ventilation and air conditioning technology to the room automation functions of solar protection and lighting control. They simplify the system integrator's familiarization with the system and ensure a high level of system functionality. This increases the quality of the execution as well as the reusability and maintainability of the programs created. For the integration of the Beckhoff automation stations into a management and control level, communication via BACnet and OPC UA is integrated directly into the templates.

The system operation and parameterization can be carried out on site on the control cabinet via touch panel or remotely by means of an integrated HTML5 web visualization. The web-based visualization solution TwinCAT HMI (TF2000) is ideal for support with commissioning, system parameterization and maintenance. TwinCAT HMI supports all basic operating and monitoring functions of building automation, such as system graphics, alarm and event lists, scheduling and trends.

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