Data Types & VariablesAdvancedAdvanced
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Updated 2025-11-10
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Union

Union

Data type allowing same memory location to be accessed as different types.

Key Takeaways

  • Data type allowing same memory location to be accessed as different types.
  • Advanced-level topic in Data Types & Variables

Detailed Definition

Data type allowing same memory location to be accessed as different types. This term is essential for understanding data types in industrial automation and PLC programming.

Common Questions

What is Union?

Data type allowing same memory location to be accessed as different types.

What prerequisites are needed to understand Union?

As an advanced-level concept, Union requires a solid foundation in PLC fundamentals and intermediate programming concepts. It's recommended to have hands-on experience with Data Types & Variables before diving deep into this topic.

What are related concepts I should learn?

To fully understand Union, you should also familiarize yourself with BOOL, INT, and DINT. These concepts work together in industrial automation systems.

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Quick Info

Difficulty
Advanced
Tier
Advanced

About Data Types & Variables

Data structures, variable types, and memory organization

Total Terms:30
Difficulty:Beginner to Intermediate