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Flat vector diagram comparing XIC and XIO ladder logic contact symbols with bit-state labels showing how each instruction evaluates its tag
ladder logicallen-bradleystudio 5000

XIC vs XIO: Ladder Logic Contacts Explained

XIC and XIO are the two most fundamental contacts in Allen-Bradley ladder logic. Learn exactly how each evaluates its bit, where to use them, and the mistakes that catch beginners out.

Jul 19, 2026 · 9 min read

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