Your customers' panels will keep dying. Be the one who fixes it from your desk.

A channel, not a competitor

Auto-discovery hands anyone hundreds of tags — and tag names mean nothing without the person who knows the scaling, the interlocks, and which of three Start bits is the real one. That person is you. LineKeeper removes the licensed-software and travel friction from a support call; the engineering stays yours to bill.

How the call usually goes:

1. The customer installs the free app; a scan finds the PLC, and on Allen-Bradley Logix the tag list loads by itself.
2. You tell them which tags matter — a list of names over the phone is enough.
3. They drag-and-drop the screen; you watch the values and sanity-check it live.
4. Writes stay locked until their administrator unlocks the specific tags you named — confirmed and audit-logged on every value.

Your work, on the record

LineKeeper On keeps an audit log of every sign-in, every tag unlock and every value written to the machine — role, time, tag, value, result. Built-in remote access (Tailscale) lets you open a customer's device from your desk to look and support — values, alarms, history, settings. Writes to the machine and alarm acknowledgment are refused over a remote connection and are done at the device or on the plant network. Access is per person, revocable in your own admin console, and the plant switches it off with one tap. The plant gets a maintenance-log record; you get a documented role in the loop.

In the free app today, writes are a per-tag unlock with confirmation and limit checks, and every write is journaled. Safety tags are blocked in code on the device and can never be unlocked — LineKeeper is not a safety device.

The panic weekend becomes a planned migration

With a bridge screen running, the dead panel stops being a Sunday-night favor. The replacement becomes a job you quote properly: firmware and application conversion planned, hardware ordered without overnight freight, commissioning scheduled. And nothing is wasted afterwards — the bridge stays as the machine's logging and dashboards layer, which the old panel never did anyway.

What LineKeeper is — and isn't

Missing something your customers need? Tell us.

The driver list, the reports and the exports on the device grew out of support calls, not a roadmap slide. A protocol we don't speak yet, a report your customer's quality team wants, a CSV their MES imports, a preconfigured profile shipped with the machine — write to us. The developer reads every request and answers it; the ones that make a support call shorter tend to get built.

Already there for integrators: a profile per machine on one device, profile export from the app so the customer gets your exact screens, per-tag write unlock with an audit log, and Tailscale remote access you revoke yourself.

Try it on your own bench first

It's the same app your customers get — with a built-in demo line, so you can see the whole flow before recommending it.

Working with plants that need this? We're looking for integrator partners for pilots — tell us about your plants in the contact form.