The biggest update since launch: a new look, more controllers and drives, and LineKeeper On as a data source. NEW LOOK • The app is now an andon board: matte black panels, large white numerals, and three colours that mean something — run green, stop red, warn amber. New icon: LineKeeper Go. • Navigation follows the questions a mechanic asks: a Machine tab (PLCs, link state, attached devices), Alarms as a tab with a badge, Fault lookup and Scan under Tools. MORE EQUIPMENT • SLC-500 and MicroLogix over PCCC: data files (N7, B3, T4, F8, ST) fill the tag browser by themselves, and the major fault is decoded in place. PLC-5 is experimental. • AC drives: tap a PowerFlex found by the scan (520 and 750 series, 70/700, 4-class) for a live card — output frequency, current, voltages, status, and the active fault decoded to text with its cause and what to check. • Drives and other devices join a machine as their own cards and are recorded in the machine history next to PLC tags. • The scan names devices the way people do (controller project name, device category) and widens itself when the nearest addresses are silent. • Find by value: enter the value shown on the machine's screen, change the parameter, and the app finds the register that moved. LINEKEEPER ON • New connection type "LineKeeper device (LK On)": read a machine through the LineKeeper device on the plant network — it works where the phone cannot reach the PLC itself. • The device's alarms on the Alarms tab, "Why is it off?" explained from the PLC program stored on the device, and a chart of what the device recorded while the phone was away (part of Pro). • Remote control behind a key switch: with the key on the device turned to REMOTE, take control and start the functions the administrator allowed — hold to run, a pulse, or a value. Needs Pro; plant network only. The device warns the people at the machine and shows who is in control. Not an emergency stop: LineKeeper is not a safety function. • Devices are found by address when the network hides them from the automatic search, and a device card has "Add to home screen". Direct PLC connections work exactly as before. Pro now unlocks instantly after a purchase or restore.

Machine history — your controller's memory on your phone: • At the first successful connection to each PLC the app saves a one-time parameter snapshot — every tag with its value and date, searchable, with manual re-take. • Every dashboard and panel tag now keeps a change log: date and value for each change, kept across sessions, with connection-loss markers. • New History tab; tap any tile to open that tag's journal. The one-time purchase is now LineKeeper Pro and covers tag writes plus machine history. Everyone who bought Write Unlock owns Pro automatically. The demo line includes every Pro feature free.