Programming LanguagesIntermediateAdvanced
1 min read
Updated 2025-11-10
Intermediate

VAR_IN_OUT

VAR_IN_OUT

Pass-by-reference parameter in IEC 61131-3, allowing direct modification of external variables.

Key Takeaways

  • Pass-by-reference parameter in IEC 61131-3, allowing direct modification of external variables.
  • Intermediate-level topic in Programming Languages

Detailed Definition

Pass-by-reference parameter in IEC 61131-3, allowing direct modification of external variables. This term is essential for understanding programming languages in industrial automation and PLC programming.

Common Questions

What is VAR_IN_OUT?

Pass-by-reference parameter in IEC 61131-3, allowing direct modification of external variables.

What are related concepts I should learn?

To fully understand VAR_IN_OUT, you should also familiarize yourself with Ladder Logic, Structured Text, and Function Block Diagram. These concepts work together in industrial automation systems.

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Quick Info

Difficulty
Intermediate
Tier
Advanced

About Programming Languages

IEC 61131-3 standard programming languages and syntax

Total Terms:25
Difficulty:Beginner to Advanced