FB_BA_RoomSample1

This template represents a sample room with heating, cooling and shading functions.

Since the requirements for rooms or zones are very different, corresponding changes and adjustments must be made to this template by the user.

• Heating/cooling function
  The central function block of this area is the subordinate template FB_BA_HeatCool_PID, which controls a heating and a cooling valve (each a FB_BA_ActuatorAnalog) on the basis of the room or zone sensors, the existing heating or cooling medium and the building data.
  The presence detection and the window contacts are used to determine which energy level is to be reached: if the windows are open, the "Protection" level is selected as a priority. If they are closed and presence is detected, the Comfort level is decisive. Otherwise, the current generally applicable level of the building (global variable eBuildingEnergyLevel, see Site) is assumed. In conjunction with a room temperature sensor, in this sample the average of RmTSen1 and RmTSen2, a small setpoint value shift RmTAdj and the room temperature setpoints (global Variable stBuildingSpRmT, see Site), the corresponding controller is controlled. In a two-pipe system, the "correct" medium must be available throughout the building (eMedium). In cooling mode, the DewPointSensor must not have triggered.
• Shading
  Using the template FB_BA_SunblindZone, two sun protection actuators (FB_BA_SunBld) are controlled here as an example. For this purpose, the room temperature, as well as the presence for detection thermal automatic / sun protection is created. In addition to the room temperature levels (global variable stBuildingSpRmT, see Site), which are required to assess the heating or cooling mode of the thermal automatic, the facade and building-specific telegrams and releases are retrieved via the global variable structure stFacade (see Site).

The initialization of the template takes place within the method FB_Init.

Illustration

FUNCTION_BLOCK FB_BA_RoomSample1 EXTENDS FB_BA_View
VAR_INPUT
  eMedium                 : E_BA_Medium;
  stFacade                : ST_BA_Facade;
END_VAR

VAR_INPUT CONSTANT
  Ctrl                    : FB_BA_HeatCool_PID;
  VlvHtg                  : FB_BA_ActuatorAnalog;
  VlvCol                  : FB_BA_ActuatorAnalog;

  PrcDetc                 : FB_BA_SensorBinary;
  Presence                : FB_BA_PresenceMonitoring;
  WdwCon1                 : FB_BA_SensorBinary;
  WdwCon2                 : FB_BA_SensorBinary;
  DewPointSensor          : FB_BA_SensorBinary;
  RmTSen1                 : FB_BA_SensorAnalog;
  RmTSen2                 : FB_BA_SensorAnalog;
  RmTAdj                  : FB_BA_SensorAnalog;
  SunBldZone              : FB_BA_SunblindZone;
  SunBld1                 : FB_BA_SunBld;
  SunBld2                 : FB_BA_SunBld;
VAR
  RmTAvg                  : FB_BA_EnAvrg02;
END_VAR
VAR
  bBlindUp      AT %I*    : BOOL;
  bBlindDown    AT %I*    : BOOL;
END_VAR