Configure EnergyPlus FMU for HVAC cosimulation

We have created an OpenStudio building model using as a base the SmallHotel example from ASHRAE with the following modifications: - Heating systems are now based on water radiator heaters placed in each zone. - For the cooling system, we placed AirTerminal:SingleDuct:ConstantVolume:CooledBeam objects in each zone and the coils from those objects are connected to a chilled water circuit. - The occupancy schedules are removed. - Added a main chilled water loop. - Added an additional boiler loop for heaters. The building is co-simulated converting the project to an EnergyPlus IDF and then to a FunctionalMockupUnit (FMU) after adding some additional configuration (ExternalInterface:FunctionalMockupUnitExport related parameters). The target of this project is to modify the OpenStudio project and create an IDF to make possible the co-simulation of some systems but keeping others controlled by EnergyPlus: * Variables that we want to co-simulate using the FMU interface: - Zone occupancy using ExternalInterface schedules. - Heater water flow rate to simulate a water valve. - Chilled water flow rate of the CooledBeam coils to simulate a water valve. - Ventilation flow rate to simulate a VAV box damper. * Output variables: - Energy consumption for Heating, Cooling and Ventilation systems. - Zone Mean Air Temperature. * Controlled by EnergyPlus: - Main chilled water loop temperature setpoint. - Main boiled water loop temperature setpoint. - Heating and cooling EnergyPlus autosize.