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AI for plants you can’t touch.

Weave Floor · Pilot programme

Most SCADA and HMI systems are locked by the original vendor, and the owner doesn’t have the password.

Weave Floor goes around the SCADA, not through it. It rebuilds the plant’s data model from what already leaks out, read-only.

Enquire about a pilotHow access works
Access
Read-only, from sources that need no vendor password. Engineering access is nice to have, never required.
Your plant
Stays as it is. Nothing is installed on it, and no control command is ever sent.
Status
Pilot programme, open for enquiries. No live deployments yet.

The plant runs. Nobody has the passwords.

Plenty of plants run on SCADA and HMI systems set up years ago by a vendor or integrator who has since moved on. The passwords left with them. The owner can see the screens but can’t log in, export the history or change an alarm.

So the data stays on screens people walk past, and problems are found when someone happens to look.

What it looks like on site

  • Alarms that sound in an empty control room.
  • Trend data that nobody can export.
  • Fault history kept in a notebook beside the panel.
  • A system everyone is afraid to restart.

Around the SCADA, not through it.

A locked plant still leaks data in plenty of places. None of them needs the vendor password. You decide how far up the ladder we go; the top step is never required.

  1. HMI screen

    Read-only

    View-only capture of the operator screen, or a camera pointed at it. Nothing connects to your control network.

  2. Alarms and exports

    Read-only

    The alarm emails, printouts and exports your system already produces, shared the way you share them today.

  3. Passive network tap

    Read-only

    A one-way copy of control-network traffic (SPAN or TAP). It physically cannot write.

  4. Passive serial tap

    Read-only

    Listens on the serial line with its transmit line cut, so it cannot send anything back.

  5. PLC reads

    Read-only

    Direct reads from the PLC. Reads only.

  6. Historian

    Read-only

    Read-only access to stored process data, if your plant keeps a historian.

  7. Engineering access

    Never required

    Nice to have, never required. We never need the vendor password, programming software or write access.

Names from the screen. Values from the wire.

Neither stream is enough on its own. Matched, they become the plant’s data model.

The screen stream gives tag names with no live values. The wire stream gives live values with no names. Weave Floor matches the two into a tag dictionary, which an engineer confirms. Agents then read from the dictionary, read-only.

  1. 1Screen stream

    What the HMI shows: the names of things, but no live feed.

  2. 2Wire stream

    What passes on the wire: the live feed, but no names.

  3. 3Match

    Weave Floor lines the two up, so each value gets its name.

  4. 4Tag dictionary

    The result, which an engineer confirms. Agents read from it, read-only, forever.

Built for plants that won’t upgrade.

Replacing old controllers and HMIs isn’t on the table for most plants. Weave Floor doesn’t ask you to.

HMIs
Windows XP and Windows 7
Serial
RS-485 and Modbus RTU
PLCs
Old Ethernet PLCs: S7-300, SLC-500, MicroLogix, Omron CJ, Mitsubishi Q
Network
None needed. No internet either: it runs on a small on-prem box.

Four rules it doesn’t break.

These hold for every pilot, whatever the plant and however far up the ladder you go.

Read-only by construction.
Every source it uses can only read. A passive network tap physically cannot write; a passive serial tap has its transmit line cut.
No control commands, ever.
It has no way to change a setpoint, start a pump or clear an alarm. People decide what happens.
Safety logic excluded.
Safety systems and their logic stay out of scope, always.
Nothing installed on the plant.
No software on your PLCs, SCADA or HMIs, and no change to how they are set up.

How a 2am pump alarm would play out.

An illustrative night, not a customer story. It shows where the agent helps and where a person stays in charge.

  1. The plant

    Discharge pressure on a transfer pump starts to fall. The HMI raises a low-pressure alarm in an empty control room.

  2. Weave Floor

    Reads the alarm from the screen feed and checks the evening’s exported trends. Pressure has been sliding for a few hours, and the standby pump has not started.

  3. Weave Floor

    Messages the on-call technician, as the site’s alarm rules say: what changed, when it started, the likely causes from the plant’s own maintenance notes, and the manual steps in the site procedure.

  4. On-call technician

    Reads the summary on their phone and decides to go in. The agent can’t start, stop or reset anything, so the decision and the hands are theirs.

  5. On-call technician

    Switches to the standby pump by hand. Weave Floor sees the pressure recover on screen and notes the time.

  6. Shift supervisor

    Finds a one-page account of the night and a draft work order for the duty pump. Reviews it and approves the work order before it goes into the maintenance system.

Talk to us about a pilot.

Tell us about the plant, the systems on it and what you’d want to know at 2am. We’ll tell you plainly whether a pilot makes sense.

Enquire about a pilot