Revision history [back]

Use a simple EnergyPlus EMS Program

You'll need:

1. A sensor that reads the outdoor air temperature
2. A sensor that reads the zone mean air temperature
3. An actuator that controls the cooling temperature setpoint schedule
4. An actuator that controls the heating temperature setpoint schedule
5. A program control object, probably set to run

6. A program object that reads the two sensors and modifies the setpoint schedule via actuator

   EnergyManagementSystem:Sensor, OutdoorTempC, !- Name Site, !- Output:Variable or Output:Meter Index Key Name Site Outdoor Air Drybulb Temperature; !- Output:Variable or Output:Meter Name

   EnergyManagementSystem:Sensor, ZoneTempC, !- Name My_Zone_Name, !- Output:Variable or Output:Meter Index Key Name Zone Mean Air Temperature; !- Output:Variable or Output:Meter Name

   EnergyManagementSystem:Actuator, HtgSetPtSchAct, !- Name Heating_Schedule_Name, !- Actuated Component Unique Name Schedule:Compact, !- Actuated Component Type Schedule Value; !- Actuated Component Control Type

   EnergyManagementSystem:Actuator, ClgSetPtSchAct, !- Name Cooling_Schedule_Name, !- Actuated Component Unique Name Schedule:Compact, !- Actuated Component Type Schedule Value; !- Actuated Component Control Type

   EnergyManagementSystem:ProgramCallingManager, ChangeSetpointsProgramManager, !- Name BeginTimestepBeforePredictor, !- EnergyPlus Model Calling Point ChangeSetpointsProgram; !- Program Name 1

   EnergyManagementSystem:Program, ChangeSetpointsProgram, !- Name ...Logic goes here... SET HtgSetPtSchAct = whatever, SET ClgSetPtSchAct = whatever;

Use a simple EnergyPlus EMS Program

You'll need:

1. A sensor that reads the outdoor air temperature
2. A sensor that reads the zone mean air temperature
3. An actuator that controls the cooling temperature setpoint schedule
4. An actuator that controls the heating temperature setpoint schedule
5. A program control object, probably set to run

6. A program object that reads the two sensors and modifies the setpoint schedule via actuator

```

EnergyManagementSystem:Sensor,
   OutdoorTempC,                      !- Name
   Site,          !- Output:Variable or Output:Meter Index Key Name
   Site Outdoor Air Drybulb Temperature;  !- Output:Variable or Output:Meter Name    
 
 EnergyManagementSystem:Sensor,
   ZoneTempC,                      !- Name
   My_Zone_Name,          !- Output:Variable or Output:Meter Index Key Name
   Zone Mean Air Temperature;  !- Output:Variable or Output:Meter Name
 
Name

EnergyManagementSystem:Actuator,
   HtgSetPtSchAct,           !- Name
   Heating_Schedule_Name,             !- Actuated Component Unique Name
   Schedule:Compact,       !- Actuated Component Type
   Schedule Value;          !- Actuated Component Control Type
 
Type

EnergyManagementSystem:Actuator,
   ClgSetPtSchAct,           !- Name
   Cooling_Schedule_Name,             !- Actuated Component Unique Name
   Schedule:Compact,       !- Actuated Component Type
   Schedule Value;          !- Actuated Component Control Type
 
Type

EnergyManagementSystem:ProgramCallingManager,
   ChangeSetpointsProgramManager,  !- Name
   BeginTimestepBeforePredictor,  !- EnergyPlus Model Calling Point
   ChangeSetpointsProgram;  !- Program Name 1
 
1

EnergyManagementSystem:Program,
   ChangeSetpointsProgram,  !- Name
   ...Logic goes here...
   SET HtgSetPtSchAct = whatever,
   SET ClgSetPtSchAct = whatever;
  whatever;