Connect to your PLC
This page talks to the PLC through PLC Lab Connector, a small program on this PC. Pick your PLC, check its address and the two tags, then connect.
Looking for PLC Lab Connector
On this PC, at http://127.0.0.1:8770.
Install PLC Lab Connector
It's the small program that lets this page reach your PLC. Install it once; after that this page connects by itself.
- Open the file. If Windows says it protected your PC: More info, check the publisher is Dreamcast Productions LLC, then Run anyway.
- Choose Only for me, or Everyone (Windows asks for an administrator).
- Come back here. The connector starts when the install finishes and asks once to pair this browser: choose Yes.
Check the downloadoptional
Proves the file is the one this page offers, unchanged. Run this in PowerShell; the two fingerprints must match.
CommandWhat installing changes
It reads and writes PLC tags and nothing else, answers only this website, and waits in the notification area until a PLC Lab page uses it. Only for me: the program in %LOCALAPPDATA%\Programs\PLC Lab Connector, a Start menu entry, and a sign-in entry that starts it when you sign in to Windows. Everyone: the same under Program Files, as a Windows service. To remove it: Settings, Apps, Installed apps, PLC Lab Connector, Uninstall. By installing it you agree to its licence.
PLC Lab Connector isn't running
It's installed on this PC but was closed. Start it from the Start menu: PLC Lab Connector. This page connects by itself once it starts. It also starts by itself the next time you sign in to Windows.
Choose Allow in your browser
Your browser is asking whether this site may use apps on this device. Choose Allow: it asks once for this site, then this page finds the connector by itself.
Your browser blocks this site from apps on this device
Allow it once, then reload this page.
- Chrome or Edge: click the icon to the left of the address, open Site settings, set Apps on device (or Local network access) to Allow.
- Firefox: click the permissions icon in the address bar and allow device apps and services.
Update PLC Lab Connector
This PC has version ; this page needs .
Check the downloadoptional
Proves the file is the one this page offers, unchanged. Run this in PowerShell; the two fingerprints must match.
CommandThis preview's address isn't allowed yet
The connector on this PC does not know this preview's address yet. A preview gets a new address with every change.
- Press Windows+R, paste this and press Enter. Notepad opens the connector's address file (if it asks to create it, click Yes).
notepad "%LOCALAPPDATA%\PLC Lab Connector\extra-origins.txt" - In Notepad, delete the old address and put this one in its place, alone on its line:
- Save the file. This page carries on by itself; if the connector on this PC is older than the one this page offers, the page then says so and offers the update.
Choose Yes in the PLC Lab Connector window
The connector asks once, on this PC, whether to let this browser in, and names this website. If you can't see its window, look on the taskbar.
Type the pairing code
The connector could not ask on this PC. Its window shows the code at the bottom: click the PLC Lab Connector icon in the notification area.
PLC Lab Connector is ready
Check your PLC below, then connect.
Connected
Disconnected
The connector answered something unexpected
Your PLC
Live
Connect to see the PLC's values here.
Testing
For trying the connection: hold a control, and see how often replies arrive.
No write yet.
Activity
Connection details
- Browser permission
- checking
- Connector
- not contacted yet
- PLC
- no session
- Pairing
- this browser is not paired yet
Built from . The connector's licence.