The panel works — for now.
Kill it, and nobody can reset the fault.

Live simulator · runs in your browser · nothing to install

Below is Bottling Line 3: a real ladder program running in your browser, the machine it controls, the original panel that still answers — and the two LineKeeper tools that take over the moment you kill that panel, the phone app and the 7″ device. No script, no rails. Press things, break things, force tags.

  • 10 routines · 144 rungs · executed every 100 ms, ladder highlighted live
  • START, STOP and E-stop are real buttons on the pedestal — the HMI only shows them
  • Everything stays in this tab: no server, nothing saved, reload to start over
Machine Bottling Line 3 · 500 ml PET · CompactLogix 5380 + PowerFlex 525
Click the machine — guard door, glycol valve, pump, drive, capper, labeler, air valve, the panel — or the pedestal buttons below it.
CompactLogix L330ER IB16 · OB16 · IF8 · OF4 PowerFlex 525 — click to trip / clear the drive fault 0.00 Hz PowerFlex 525 PLC · 192.168.10.60 Guard door — click to open / close (Guard_Closed) GUARD 4.2 °C 62 % PRODUCT TANK Glycol cooling valve — click to make it stick (the story of last night) GLYCOL STUCK Product supply pump — click to trip its breaker PUMP TRIPPED — FILLER BYPASSED 500 ml Capper — click to jam a bottle in it, click again to clear the jam CAPPER JAM 2.2 Nm CAPPER BYPASSED Labeler carousel — click to wear the clutch a step further (cycle time grows) wear 1.0 LABELER BYPASSED cycle 6.2 s REJECT OFF 0 PE 0 GOOD STACK Plant air supply — click to close the valve (pressure falls) 92 psi AIR VALVE SHUT PanelView Plus — the original operator panel (see the card below) NO SIGNAL HMI · original panel LineKeeper · .61 Wi-Fi · phone
Physical: Break:
Line 3 loading…
0 bpm — good — rejects scan —
LK Go iPhone 16 Pro Max · same Wi-Fi as the PLC
Pro features are open in the demo.
Original panel PanelView Plus 7 · 10″ · the screen the operators used
BOTTLING LINE 3 · MAIN
—
STATIONS
SETPOINTS
SPEED bpm 180
TEMP °C 4.0
FILL ms 2000
PROCESS
SPEED0bpm
TANK4.2°C
LEVEL62%
CYCLE6.2s
GOOD0
REJECT0
SHIFT GOOD0
SHIFT REJECT0
NO SIGNALTouch does nothing. This is the moment the story starts.
PanelView Plus 7
LK On 7″ touch panel · 192.168.10.61 · the real web UI
LineKeeper 7″
Ladder logic — live Line3_Bottling · 5069-L330ER · 100 ms scan
Green = power flows. Click any tag to see its value, force it, or jump to where it is used.
Download line3.L5X
Everything runs in this tab — the PLC program, the machine, the phone app and the device UI. Nothing is uploaded, nothing is saved. Reload the page and the line is back where it started.

Want this on your line?

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LK Go, the phone app, is free on the App Store. LK On, the 7″ and 10″ touchscreen, is on preorder — or leave a note and we’ll get back to you personally.

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