| A&E | Alarms & Events |
| ANSI | American National Standards Institute |
| API | Application Program Interface |
| DA | Data Access |
| HDA | Historical Data Access |
| HMI | Human-Machine Interface |
| IEC | International Electrotechnical Commission |
| IP | Internet Protocol - RFC 791 |
| ISO | International Organization for Standardization |
| LAN | Local Area Network |
| MES | Manufacturing Execution System |
| NaN | "Not a Number", a unique binary pattern representing an invalid number |
| (see ANSI/IEEE 754-1985) |
| NAT | Network Address Translation - RFC 2663 |
| UA | Unified Architecture |
| UTC | Universal Time Coordinated |
| XML | Extensible Markup Language |
| CNC | Computerized Numerical Control (also referred to as Computer Numerical Control) |
| ERP | Enterprise Resource Planning |
| PDA/MDA | Process Data Acquisitoin / Machine Data Acquisition |
| PLC | Programmable Logic Control |
| UI | User Interface |
| GUI | Graphical User Interface |
| I/O | Input/Output |
| SCADA | Supervisory Control and Data Acquisition |
