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Ladder Logic Maker

Describe your control logic — inputs, outputs, and conditions — and AI builds a standard relay ladder logic diagram.

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Free Ladder Logic Diagram Maker
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Draw a conceptual ladder logic diagram for a motor start/stop control: a normally-open Start pushbutton (I:1/0), a normally-closed Stop pushbutton (I:1/1), a normally-closed overload contact (I:1/2), a motor starter coil (O:2/0), and a seal-in auxiliary contact from the coil that holds the circuit energized after the Start button is released. Label every input and output tag.

Here's the motor start/stop seal-in ladder logic diagram with all inputs, outputs, and the overload contact included.

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How to draft ladder logic

No template to fill in and no drawing. You talk; the canvas keeps up.

Ladder logic for a motor start-stop circuit with a seal-in contact...

brief.pdflecture-3.pptx
01

Name signals and conditions

List input tags, output tags, and the logical conditions from your training exercise or approved design.

02

Describe state and timing

Specify any latching, reset, timer, or startup behavior. Keep platform-specific instructions explicit instead of assuming defaults.

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03

Review the conceptual diagram

Trace each rung against the stated conditions. Practical control code needs separate engineering review and validation in the intended environment.

What is a ladder logic diagram?

A ladder logic diagram expresses control conditions as rungs between rails. It uses a visual vocabulary inspired by relay circuits, but a diagram of logical conditions does not establish the physical wiring or behavior of a particular controller.

When a conceptual ladder helps

Use it for learning logic relationships or discussing a documented control sequence before implementation. Keep controller-specific behavior, commissioning, and safety functions within the appropriate engineering process.

Rules for a reviewable logic draft

  1. Use explicit signal names. Each contact and output should refer to a defined variable or tag.
  2. Separate physical and logical states. Explain what an input value means before choosing how the diagram tests it.
  3. State memory behavior. Latches, resets, and initial conditions need clear requirements.
  4. Describe time-dependent actions. Provide timer intent and reset conditions rather than relying on an unlabeled symbol.
  5. Keep deployment separate. A generated drawing is not verified PLC code or a validated safety function.

How MyMap sketches the control logic

MyMap arranges the tags and conditions you describe into a visual draft. Ask it to explain a rung, mark unspecified behavior, or split a complex condition into smaller teaching examples.

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Ask for slides from this map and present frame by frame.

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A read-only link for anyone; they can copy it to their own canvas.

Keep editing

Every map stays on your canvas; come back and ask for more.

Common questions

Does this produce controller-ready code?

Do not treat the canvas draft as verified controller code. Implement and validate the design in the tools and environment required for the specific PLC.

Is a logic contact the same as a physical switch?

A logic contact represents a test of a value. Explain how the physical device maps to that value so the intended condition is unambiguous.

Can I use it for safety-related controls?

Use qualified engineering processes and appropriate validated tools for safety functions. A generated conceptual diagram does not validate a machine’s safety behavior.

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Ladder Logic Maker

Free to start. No credit card required.

✦ Free to start · No credit card required · PDF, docs & images supported