3 Terms, definitions and conventions

3.3 Abbreviations and symbols

Symbol | Definition |
---|---|
Ctrl | Controller |
DA | Data Access |
HDA | Historical Data Access |
HMI | Human-Machine Interface |
IEC | International Electrotechnical Commission |
MES | Manufacturing Execution System |
PLC | Programmable Logic Controller |
SCADA | Supervisory Control And Data Acquisition |
UA | Unified Architecture |
XML | Extensible Markup Language |