Win-CC Control Extension Development: Pressure-Enthalpy Win-CC Panel

This report reviews in detail the development and implementation of a Win-CC Control Extension for both Windows and Linux Platforms. The Control Extension consists in a Win-CC panel linked by dynamic libraries (*.dll or *.so) to the NIST Thermodynamics properties library. This linking permits to handle in real time different thermodynamic properties of a wide range of refrigerants. The Win-CC panel uses this information to produce a Pressure-Enthalpy Diagram of any required refrigeration cycle. In general, the p-H diagram enhance the understanding of the refrigeration cycle and facilitate the control and supervision of the system. Ideally, this control extension will be part of several Cooling Projects at CERN such as ATLAS IBL and CMS TIF. The development of this tool required several weeks of programming in C++ in both Linux and Windows platforms. At the end, the tool was constructed successfully and tested in both operating systems. The following sections go deeper into the develop, operation, and implementation of the control extension tool as well as how to create a new one from its templates.