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ConceptStructured Control Language / 结构化控制语言

SCL

Structured Control Language in Siemens PLC programming, a text-based programming language similar to Pascal or other high-level languages, used to implement complex logic and state machines.

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Oct 12

SCL (Structured Control Language) is a high-level structured text language defined by the IEC 61131-3 standard, and in Siemens TIA Portal it stands alongside ladder diagram (LAD) and function block diagram (FBD).

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Oct 12

In Section 0 of the code, the agent implements a deterministic output write design that writes all outputs to FALSE or a defined value at the start of each scan cycle.

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Oct 12

In Section 7 of the code, the agent implements cylinder interlocking: cylinder A extending requires simultaneously satisfying three conditions—there is an A-extend request, there is no B-extend request, and cylinder B has confirmed retraction—and likewise for cylinder B.

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