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2. IEC 61131-3 - Wikipedia

   en.wikipedia.org/wiki/IEC_61131-3

   Part 3 of IEC 61131 deals with basic software architecture and programming languages of the control program within PLC. It defines three graphical and two textual programming language standards: Ladder diagram (LD), graphical; Function block diagram (FBD), graphical; Structured text (ST), textual

3. Ladder logic - Wikipedia

   en.wikipedia.org/wiki/Ladder_logic

   Ladder logic has evolved into a programming language that represents a program by a graphical diagram based on the circuit diagrams of relay logic hardware. Ladder logic is used to develop software for programmable logic controllers (PLCs) used in industrial control applications.

4. CODESYS - Wikipedia

   en.wikipedia.org/wiki/CODESYS

   The five programming languages for application programming defined in the IEC 61131-3 are available in the CODESYS development environment. IL (instruction list) is an assembler-like programming language. The IEC 61131-3 user organization PLCopen has declared this language as “deprecated”, which means it shall not be used for new projects ...

5. Programmable logic controller - Wikipedia

   en.wikipedia.org/wiki/Programmable_logic_controller

   A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.

6. SCADA - Wikipedia

   en.wikipedia.org/wiki/SCADA

   Unlike a procedural language like C or FORTRAN, IEC 61131-3 has minimal training requirements by virtue of resembling historic physical control arrays. This allows SCADA system engineers to perform both the design and implementation of a program to be executed on an RTU or PLC.

7. Instruction list - Wikipedia

   en.wikipedia.org/wiki/Instruction_list

   Instruction list (IL) is one of the 5 languages supported by the initial versions of IEC 61131-3 standard, and subsequently deprecated in the third edition. [1] It is designed for programmable logic controllers (PLCs). It is a low level language and resembles assembly. All of the languages share IEC61131 Common Elements. The variables and ...

8. IBM PL/S - Wikipedia

   en.wikipedia.org/wiki/IBM_PL/S

   PL/S, short for Programming Language/Systems, is a "machine-oriented" programming language based on PL/I.It was developed by IBM in the late 1960s, under the name Basic Systems Language (BSL), as a replacement for assembly language on internal software projects; it included support for inline assembly and explicit control over register usage.

9. Ignition SCADA - Wikipedia

   en.wikipedia.org/wiki/Ignition_SCADA

   The Ignition Expression Language is a simple language that was invented by Inductive Automation. [30] An expression language is a very simple kind of language where everything is an expression - which is a piece of code that returns a value. This means that there are no statements and no variables, just operators, literals, and functions.