# How to use ChatGPT with Ignition (MES/SCADA)

> Source: https://netray.co/integrations/ignition-chatgpt
> Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems.
> Section: Integrations

## Short answer

You can use ChatGPT with Ignition in two ways: export curated data for analysis, or give a custom GPT an action that calls a protected WebDev endpoint on your Gateway. Both need the Gateway reachable from the internet or a relay, so many plants choose a private model for production data and keep ChatGPT for documentation and code help.

## System

Inductive Automation Ignition (MES/SCADA)

## Capability

chatgpt

## Intro

Controls engineers already use ChatGPT daily, mostly for Jython snippets, expression syntax and explaining a PLC fault code. The question that follows is whether it can look at the actual plant: why did Line 3 trip, what do the last shift's counts look like, which UDT does this tag belong to.

That jump from helping with code to touching live production data is where the design decisions are. Ignition Gateways usually sit behind firewalls, run on a segmented network, and carry values that a customer contract or export rule may restrict. A direct line from a public chat product to the Gateway is a serious step, and it should be a deliberate one.

Below are the realistic ways to connect ChatGPT to Ignition, what each exposes, and where the line between convenience and risk sits.

## Use Cases

### Jython and expression help with real project context

**Description:** Paste a script from a Designer project, with secrets removed, and ask for a review, a refactor or a unit-test style harness. No plant data needs to leave the site for this.

### Analyse an exported historian slice

**Description:** Export a CSV of aggregated tag history for a bad batch and ask ChatGPT to look for step changes, correlations and gaps. Useful for a one-off investigation when the data is cleared for sharing.

### Custom GPT for production lookups

**Description:** A custom GPT with an action calls a WebDev endpoint that returns line status or last shift counts. Suitable only if the endpoint is hardened and the data is cleared for that service.

### Drafting work instructions and SOP updates

**Description:** Provide approved procedure text and ask for a revised version when a process changes. The model does not need tag access for this.

### Explaining alarm sets to new operators

**Description:** Feed alarm names, priorities and descriptions from the configuration export and generate plain-language training notes.

## System Surface

- WebDev module endpoints (doGet or doPost) can return JSON from tags, named queries or the alarm journal, and are the usual target for a GPT action.
- Perspective and Vision both support exporting data to CSV or Excel from tables and reports, which is the low-risk manual route.
- Gateway-side Reporting module can generate PDF or CSV on a schedule, which you can feed to an analyst workflow.
- Database connections to the historian and MES schema allow a read-only replica or extract to be prepared for external analysis instead of exposing the live Gateway.
- Gateway security zones, identity providers and, in newer versions, API token support control who can call WebDev resources. Confirm exact options for your version.

## How It Works

### Classify the data

**Detail:** List what ChatGPT may see: public documentation, anonymised aggregates, or live operational values. Anything under export control or customer confidentiality needs a separate decision.

### Pick export or live access

**Detail:** For occasional analysis, export and upload. For repeated questions, build a narrow API and use a custom GPT action or a company workspace connector.

### Build a minimal WebDev API

**Detail:** Create read-only endpoints with fixed parameters, return small JSON and validate inputs. Document it with an OpenAPI file so the GPT action can use it.

### Authenticate and publish safely

**Detail:** Use a token or OAuth-style scheme and place the endpoint behind a reverse proxy or API gateway rather than exposing the Gateway port directly.

### Configure workspace data controls

**Detail:** Use a business or enterprise plan where your data handling terms apply, review retention and training settings, and restrict who can create actions.

### Review and log use

**Detail:** Log each request at the proxy and sample responses weekly to confirm nothing sensitive is leaking through free-text fields.

## Example Flows

### Batch investigation from an export

**Trigger:** A quality engineer needs to understand why one batch failed viscosity.

**Steps:**

- Engineer exports aggregated tag history for mixer speed, temperature and torque from the Ignition historian.
- File is anonymised, removing product names and customer codes.
- Engineer uploads it to ChatGPT and asks for outliers and likely drivers.

**Result:** A shortlist of hypotheses to test on the next run, with no live connection to the plant.

### Shift status through a custom GPT

**Trigger:** A supervisor asks the GPT how Line 2 did overnight.

**Steps:**

- GPT action calls the proxy with the line ID and shift window.
- Proxy forwards to a WebDev endpoint that runs a named query on production counts.
- Endpoint returns counts, rejects and downtime minutes only.

**Result:** A readable summary, with the response limited to non-sensitive aggregates.

### Script review before deployment

**Trigger:** A developer finishes a Gateway timer script.

**Steps:**

- Developer pastes the script with secrets and hostnames removed.
- ChatGPT reviews it for exception handling and blocking calls.
- Developer tests the changes on a staging Gateway.

**Result:** Fewer threading and timeout mistakes reaching production.

## On Prem

ChatGPT is a hosted service, so it cannot run inside an isolated plant network. When the data must stay local, the same pattern works with an open-weight model served on your own GPU hardware: the WebDev API stays internal, a local chat front end replaces the custom GPT, and the model reads only what your tools return. Many teams keep ChatGPT for code and documentation questions that need no plant data, and use a private model for anything touching tags, recipes or product information. Netray builds that private side, including the tool layer and approvals, when teams want it.

## Security

- Never expose the Gateway web port directly to the internet for a GPT action; use a proxy with authentication and rate limits.
- Return aggregates and identifiers, not full tag trees or credentials, in any response sent to a hosted model.
- Confirm your contract and data handling plan before sending anything that is export controlled or customer restricted.
- Strip secrets, hostnames and database connection details from scripts before pasting.
- Review the plan's retention and model training settings and restrict who can add GPT actions.

## Options

### Manual export and upload

**Fit:** Occasional analysis on cleared, non-sensitive data.

**Effort:** Minutes per analysis, no development.

### Custom GPT with an action over a hardened WebDev API

**Fit:** Repeated lookups where hosted processing is acceptable.

**Effort:** One to three weeks including the proxy and security review.

### Private model with a ChatGPT-style interface

**Fit:** Regulated, defense or contract-restricted plants that cannot send data out.

**Effort:** Pilot in a few weeks, delivered by your team or a partner such as Netray.

## Pitfalls

- Treating a CSV export as harmless when tag names or product codes reveal customer information.
- Exposing a WebDev endpoint that accepts arbitrary tag paths or SQL fragments.
- Expecting ChatGPT to understand your tag naming without a catalog; it will guess confidently.
- Sending long raw history instead of aggregates, which wastes context and gets weak answers.
- Skipping a staging Gateway test for generated scripts.

## Faq

### Can ChatGPT connect to Ignition directly?

**Answer:** There is no built-in link. You connect it through an API you control, usually a WebDev endpoint behind a proxy, or you work from exported files. Either way you decide the data scope. Direct exposure of the Gateway to the internet is not recommended.

### Is it safe to paste Ignition scripts into ChatGPT?

**Answer:** It can be, if you remove credentials, hostnames, customer identifiers and proprietary process logic, and your plan's data terms fit your policy. Many companies set a rule that scripts may be shared but tag values and recipes may not.

### Does ChatGPT replace Ignition dashboards or reports?

**Answer:** No. Perspective, Vision and Reporting remain the reliable operational views. ChatGPT is helpful for questions and explanations around them, but should not be the only place a critical number is shown.

### What if our plant data cannot leave the building?

**Answer:** Use a private model on local hardware with the same tool layer. You keep the natural language experience and the audit trail while the data stays on your network and under your controls.

### Can ChatGPT write to Ignition tags?

**Answer:** Technically an action could call a write endpoint, but you should not allow this for production tags. If a write is ever needed, route it through an approval step performed by an authorised user with full logging.

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