Phone onto the machine network
LK Go talks straight to the controller over the machine's Ethernet, so the phone has to be on that network. If plant Wi-Fi already reaches the PLC, you need nothing here; otherwise a wired adapter is the simplest start, a Wi-Fi bridge suits a crew, and a small switch helps when there is no spare port.
- Anker USB-C to gigabit Ethernet adapter
— the quickest wired path: spare switch port in, and the app sees the controller in seconds.
Fits USB-C iPhones and iPads, no drivers. Skip it if plant Wi-Fi already reaches the PLC.
For LK Go - GL.iNet Opal travel router
— plug it into a spare switch port and the machine network gets Wi-Fi; the phone app connects
in about a minute, and the whole crew can join. Skip it if one wired phone is enough.
For LK Go - GL.iNet Beryl AX
— the same job, faster, on Wi-Fi 6 with more range for big halls full of steel.
Skip it if you work a few steps from the cabinet; the Opal covers that.
For LK Go - 5-port industrial DIN-rail switch
— for when the machine has no spare port: free ports for the phone adapter, the Wi-Fi bridge
and a laptop. Fitting it moves one cable, so do it at a stop. Skip it if a port is free.
For LK Go andLK On - Cat6 patch cables, 10-pack in 5 colors
— color-coded spares so the temporary drop is obvious to the next shift.
Skip it if the cabinet already has spares.
For LK Go andLK On - RJ45 cable tester
— the cheap answer to "is it the cable?" before anyone blames the network.
Skip it if maintenance already carries one.
For LK Go andLK On
A screen on the machine
For a screen that stays at the machine: LK On, or a spare tablet running LK Go in full-screen panel mode while the proper fix is on its way. On a bench beside the dead panel, none of this is needed.
- VIVO pole-mount VESA arm
— puts the screen at eye level on a machine post instead of a chair. LK On's VESA holes fit it;
a tablet needs a VESA holder. Skip it if LK On goes into the old panel's cutout.
For LK Go andLK On - TICONN IP67 enclosure with clear cover
— houses the gateway or Wi-Fi bridge on the machine without bare boards on the rail.
Skip it if there is room inside a closed cabinet.
For LK Go andLK On - MDR-60-24 DIN-rail power supply, 24 V
— clean rail power for LK On, a switch or a gateway, in the form factor already in your cabinet.
Skip it if the cabinet's 24 V supply has spare capacity; LK On also ships with a desktop supply.
For LK On
Serial and Modbus RTU devices
A phone has no serial port. A Modbus RTU device on RS-485 or RS-232 reaches LK Go and LK On through a gateway that puts it on Ethernet as Modbus TCP; to the app it then looks like any other TCP device. If the device already speaks Modbus TCP, skip this group.
- USR-DR302 DIN-rail Modbus RTU→TCP gateway
— the cheapest credible way to reach an RS-485 device from the app.
Skip it if the device already speaks Modbus TCP.
For LK Go andLK On - USR-TCP232-410s serial-to-Ethernet gateway
— the same job when the device speaks RS-232.
Skip it for an RS-485 device; the DR302 does that on a DIN rail.
For LK Go andLK On - Moxa MGate MB3180 protocol gateway
— the buy-once option plant engineering will actually sign off on.
Skip it for a one-off job; the USR gateways do the same.
For LK Go andLK On - DIN-rail RJ45 breakout with 120 Ω termination
— missing termination is the top cause of flaky RTU links on long runs.
Skip it on a short cable, or when the device has its own termination switch.
For LK Go andLK On
Not sure what you need?
Start with nothing: if a laptop on plant Wi-Fi can ping the PLC, LK Go will connect without any of this. If a panel just died, the 10-minute triage guide comes first; a surprising share of dead panels turn out to be a power supply or a cable. Planning a screen that stays on the machine? That is LK On. Or tell us about the machine and we will say what, if anything, you need.