Shared ladder program
Ladder logic: 1 rung with XIC, falling-edge, CTU
A runnable ladder logic program with 1 rung using XIC, falling-edge, CTU. Open it in the free browser PLC simulator to edit, run and fork it. No install, no account.
What's in this program
- 1 rung
Instructions used: XIC (examine-if-closed contact (normally open)), falling-edge (one-shot falling-edge contact), CTU (count-up counter).
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More example programs
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Batch counter with compare
Each part pulse increments a count-up counter; a compare instruction watches the accumulator and fires a Batch Complete output when it reaches the target. Shows CTU plus a CMP against a constant.
Want to build your own? Open the free ladder logic sandbox.
