Which of the following is NOT a recognized PLC programming language?

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Multiple Choice

Which of the following is NOT a recognized PLC programming language?

Explanation:
In PLC programming, the languages officially defined by the IEC 61131-3 standard are Ladder Logic, Function Block Diagram, Structured Text, Instruction List, and Sequential Function Chart. These are the recognized ways to write PLC programs, each with its own style—ladder-style visual logic, block-based diagrams, high-level text, stepwise charts, and a mix of steps and transitions. C language, while common in general software development, is not part of that standard set. Some systems may allow C-like coding or integrating C for specialized tasks, but it isn’t one of the IEC 61131-3 designated PLC languages.

In PLC programming, the languages officially defined by the IEC 61131-3 standard are Ladder Logic, Function Block Diagram, Structured Text, Instruction List, and Sequential Function Chart. These are the recognized ways to write PLC programs, each with its own style—ladder-style visual logic, block-based diagrams, high-level text, stepwise charts, and a mix of steps and transitions. C language, while common in general software development, is not part of that standard set. Some systems may allow C-like coding or integrating C for specialized tasks, but it isn’t one of the IEC 61131-3 designated PLC languages.

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