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plc contacts

1 article tagged “plc contacts”.

Flat vector diagram comparing normally open and normally closed contact symbols in PLC ladder logic rungs
ladder logicplc contactsnormally open vs normally closed

NO vs NC Contacts in PLC Ladder Logic: Full Breakdown

Confused about normally open vs normally closed contacts in PLC ladder logic? Learn what NO and NC mean in hardware vs software, with real wiring examples.

Jul 20, 2026 · 8 min read

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