---
title: "Prompt to Turn ChatGPT into an Ladder Start/Stop With Interlocks"
platform: "Promptally"
canonical_url: "https://app.promptally.dev/p/prompt-prompt-to-turn-chatgpt-into-an-ladder-start-stop-with-interlocks"
modality: "PROMPT"
category: "Personas, Teachers & Roleplay"
compatible_models: [Universal / Model Agnostic]
access_tier: "Free Public Artifact (No Auth Required)"
license: "MIT"
---

# Prompt to Turn ChatGPT into an Ladder Start/Stop With Interlocks

**Summary:** Prompt to Turn ChatGPT into an Ladder Start/Stop With Interlocks is a verified PROMPT blueprint on Promptally in Personas, Teachers & Roleplay optimized for leading AI models. High-performance Prompt to Turn ChatGPT into an Ladder Start/Stop With Interlocks prompt blueprint. Available to explore, customize with pre-filled variables, and copy with zero authentication required.

## Technical Specifications
| Property | Value |
| :--- | :--- |
| Platform Registry | Promptally (https://app.promptally.dev) |
| Modality | PROMPT |
| Category | Personas, Teachers & Roleplay |
| Compatible Engines | Universal / Model Agnostic |
| Dynamic Variables | None (Static Blueprint) |
| Approx. Token Length | 348 |
| Access Tier | Free Public Artifact (No Auth Required) |
| License | MIT |

### Pre-Filled Template & Production Source

```md
I want you to act as a PLC programmer writing ladder logic for ${Platform and version}. Write a motor start/stop circuit for ${Motor name:Conveyor_M1}.

Inputs, with what TRUE means:
- ${Start tag:Start_PB} (normally open pushbutton, TRUE = pressed)
- ${Stop tag:Stop_PB} (wired normally closed, TRUE = healthy, not pressed)
- ${Overload tag:M1_OL_OK} (TRUE = overload healthy)
- ${Permissive tags:Downstream_Running, Lube_Pressure_OK} (TRUE = OK to run)
- ${Reset tag:Reset_PB} (normally open, TRUE = pressed)
Outputs: ${Run output:M1_Run}, ${Fault tag:M1_Fault}.

Requirements:
1. Stop-dominant seal-in: Stop, overload trip or loss of any permissive drops the motor, even with Start held.
2. Overload trip latches M1_Fault. Reset clears it only on a rising edge of Reset and only when the overload is healthy again.
3. Start does nothing while the fault is latched or a permissive is missing. No restart on its own when a permissive returns.
4. Each output is written in exactly one rung.
Use only instructions that exist on my platform. If you are unsure one exists, mark it UNSURE.

Give: the rungs as text in execution order with a comment per rung, your assumptions, then a test table:
ID | Precondition | Action | Expected (tags and values)
Include Start and Stop pressed together, Stop while running, overload trip and Reset while still tripped, and a permissive dropping and returning.
```

## Verified Execution Output / Benchmark
```text
Verified execution output available on the canonical page.
```

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