TABLE OF CONTENTS | DCS | Distributed Control System | |
| FB | Function block | |
| FBD | IEC 1131-3 Function Block Diagram graphical language | |
| FIP | Fieldbus implementation based on a French standard | |
| FRD | Functional Requirements Diagram | |
| HMI | Human Machine Interface (see MMI) | |
| HVAC | Heating venting and air conditioning system | |
| IEC | International Electro-technical Commission | |
| I/O | Inputs and outputs to a control system | |
| IPMCS | Industrial-process measurement and control systems | |
| IS | International Standard | |
| ISA | Instrument Society of America | |
| ISO | International Standards Organisation | |
| LD | IEC 1131-3 Ladder Diagram graphical language | |
| MMI | Man-machine interface (now replaced by HMI) | |
| MMS | Manufacturing Message Specification | |
| OO | Object oriented | |
| OSI | Open Systems Interconnection | |
| PAS | Publicly Available Specification | |
| PC | Personal computer | |
| PID | Three term controller, proportional, integral, derivative closed-loop control algorithm | |
| P&ID | Process and Instrumentation Diagram | |
| PLC | Programmable logic controller | |
| POU | IEC 1131-3 Program Organization Unit | |
| RAM | Random access memory | |
| SCADA | Supervisory, control and data acquisition system | |
| SFC | IEC 1131-3 Sequential Function Chart graphical language | |
| SI | Service Interface | |
| SIFB | Service Interface Function Block | |
| ST | IEC 1131-3 Structured Text language | |
| UML | Unified Modelling Language | |
| XML | Extensible Markup Language |
The following font and style is used to distinguish examples of textual programming language from ordinary text:
BEGIN A: = A + 100.5; (* Comment *) END
The suppression of superfluous detail in textual language examples is indicated using an ellipsis as...
