Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I'm not sure if this is what you are looking for but there are user defined components in EnergyPlus. You can read the documentation for each of these and look for the example file that shows how each are used. See ExampleFiles-ObjectsLink.html in the example files folder (e.g., EMSUserDefinedWindACAuto.idf).
RoomAir:TemperaturePattern:UserDefined,
ZoneHVAC:ForcedAir:UserDefined,
AirTerminal:SingleDuct:UserDefined,
Coil:UserDefined,
PlantComponent:UserDefined,
PlantEquipmentOperation:UserDefined,
