3.3 Abbreviated terms
| API | Application Process Identifier |
| CR | Communication Relation |
| IP | Internet Protocol |
| MES | Manufacturing Execution System |
| PESAP | PROFIenergy Service Access Point |
| PN | PROFINET |
| SCADA | Supervisory Control and Data Acquisition |
| TCP | Transmission Control Protocol |
| XML | Extensible Markup Language |