# Global

- [gc\_Parameters](/hub/codesys-hvac/hvac-library/datatypes/global/gc_parameters.md)
- [GV\_DT](/hub/codesys-hvac/hvac-library/datatypes/global/gv_dt.md)
- [GVMan](/hub/codesys-hvac/hvac-library/datatypes/global/gvman.md)