Ladder Logic ElementsIntermediateAdvanced
1 min read
Updated 2025-11-10
Intermediate

AFI (Always False)

AFI - AFI (Always False)

Instruction that always evaluates false, used to disable rungs during testing.

Key Takeaways

  • Instruction that always evaluates false, used to disable rungs during testing.
  • Intermediate-level topic in Ladder Logic Elements

Detailed Definition

Instruction that always evaluates false, used to disable rungs during testing. This term is essential for understanding ladder logic in industrial automation and PLC programming.

Common Questions

What is AFI (Always False)?

Instruction that always evaluates false, used to disable rungs during testing.

What are related concepts I should learn?

To fully understand AFI (Always False), you should also familiarize yourself with TON (Timer On-Delay), TOF (Timer Off-Delay), and CTU (Count Up). These concepts work together in industrial automation systems.

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Quick Info

Difficulty
Intermediate
Tier
Advanced

About Ladder Logic Elements

Contacts, coils, timers, counters, and ladder diagram components

Total Terms:70
Difficulty:Beginner to Intermediate