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

CTUD (Up/Down Counter)

CTUD - CTUD (Up/Down Counter)

Bidirectional counter with separate count up and count down inputs.

Key Takeaways

  • Bidirectional counter with separate count up and count down inputs.
  • Intermediate-level topic in Ladder Logic Elements

Detailed Definition

Bidirectional counter with separate count up and count down inputs. This term is essential for understanding ladder logic in industrial automation and PLC programming.

Common Questions

What is CTUD (Up/Down Counter)?

Bidirectional counter with separate count up and count down inputs.

What are related concepts I should learn?

To fully understand CTUD (Up/Down Counter), 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