Kbox LGE - LG BYR Port KNX Gateway
Product Features
Kbox LGE connects LG air conditioners to a KNX automation system. The link is made through the indoor unit's BYR controller port: the gateway drives the unit from KNX and reports its state back to the bus.
The standout feature of Kbox LGE is its Slave Function: the device can run in parallel with an existing wired remote controller. The user keeps using the controller on the wall while the air conditioner is also controlled from KNX — the controller does not have to be removed or disabled. That makes KNX retrofits in existing buildings noticeably simpler.
The setpoint can be limited to 18–30 °C in both cooling and heating. Fan runs as 4 levels plus Auto.
Integration Notes
- Vane control is not position based: Kbox LGE has no addressable positions for the vertical vane; the vane is driven only by a 1-bit Swing on/off object. If you are planning a visualisation that places the vane at discrete angles, do not expect the behaviour of a model that does expose positions, such as Kbox MDA with its 7 positions. The horizontal vane (Left-Right Wing) is supported.
- Ambient temperature: the ambient temperature is fed over the KNX bus. Passing a KNX room thermostat's reading to the air conditioner gives a more stable comfort temperature than the indoor unit's suction sensor.
- Controller lock: the "Remote Controller Lock" object blocks commands from the wired controller; control from the KNX side is unaffected.
Documents & Downloads
Box Contents
- Kbox-LGE KNX gateway
- Wago KNX Terminal
Technical Specifications
| Device | Kbox LGE - LG BYR Port KNX Gateway |
|---|---|
| AC brand | LG |
| Connection port | BYR |
| Compatible indoor units | LG indoor units |
| ETS application version | 1.0.8 |
| KNX certificate no. | 574/22153/25 (KNX v3.0.4) |
| Power supply | KNX bus (EIB) |
| Power consumption | 10 mA |
| Inputs | 3 dry contact inputs |
| Button / LED | 1 × KNX programming button · 1 × KNX programming LED |
| Operating mode | S-Mode |
| Protection class | IP20 |
| Working temperature | -10 °C … +70 °C |
| Storage temperature | -25 °C … +90 °C |
| Max. humidity | < 90 % RH |
| Dimensions | 44.5 × 19.8 × 44.5 mm |
| Configuration | ETS 5 / ETS 6 |
ETS Parameters
The device connects to the LG indoor unit through the BYR port. The parameters below are configured in ETS.
| Operating modes | Cool / Heat / Dry / Fan Only / Auto |
|---|---|
| Fan speed | 4 levels + Auto |
| Up-Down Wing | Swing on/off only |
| Left-Right Wing | Yes |
| Cooling setpoint range | 18 – 30 °C |
| Heating setpoint range | 18 – 30 °C |
| Ambient temperature source | From the KNX bus (From Bus) |
| Slave Function (parallel with a wired remote controller) | Yes |
KNX Group Objects
The device exposes 46 group objects. Object names are given exactly as they appear in the ETS database.
| Object | Function | Type | Flags |
|---|---|---|---|
| General | |||
| On/Off | 1: On / 0: Off | 1 bit | CWU |
| On/Off Feedback | 1: On / 0: Off | 1 bit | CRT |
| Alive Status | Alive notification | 1 bit | CRT |
| Remote Controller Lock | 1: Enabled / 0: Disabled | 1 bit | CRWU |
| Object Control Lock | 1: Enabled / 0: Disabled | 1 bit | CRWU |
| Error Status | ASCII error code | 14 bytes | CRT |
| Error Alarm | 1: On / 0: Off | 1 byte | CRT |
| Mode | |||
| Mode | Cool / Heat / Dry (Dehumidification) / Fan (Fan Only) / Auto | 1 byte | CWU |
| Mode Feedback | Cool / Heat / Dry (Dehumidification) / Fan (Fan Only) / Auto | 1 byte | CRT |
| Mode +/- | 1: Increase / 0: Decrease | 1 bit | CWU |
| Heat/Cool Mode Set | 1: Heat / 0: Cool | 1 bit | CWU |
| Cool Mode Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Heat Mode Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Dry (Dehumidification) Mode Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Fan (Fan Only) Mode Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Auto Mode Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Cool Mode Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Heat Mode Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Dry (Dehumidification) Mode Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Fan (Fan Only) Mode Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Auto Mode Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Temperature | |||
| Set Point Temperature | Temperature (°C) | 2 bytes | CWU |
| Set Point Temperature Feedback | Temperature (°C) | 2 bytes | CRT |
| Set Point Temperature +/- | 1: Increase / 0: Decrease | 1 bit | CWU |
| Ambient Temperature | Temperature (°C), min 8 / max 39 | 2 bytes | CWU |
| Ambient Temperature Feedback | Temperature (°C) | 2 bytes | CRT |
| Fan | |||
| Fan Level Set | Percentage (Scaling) | 1 byte | CWU |
| Fan Level Feedback | Percentage (Scaling) | 1 byte | CRT |
| Fan Level Set | 0…4 (Enumerated) | 1 byte | CWU |
| Fan Level Feedback | 0…4 (Enumerated) | 1 byte | CRT |
| Fan Level +/- Set | 1: Increase / 0: Decrease | 1 bit | CWU |
| Fan Level-1 Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Fan Level-2 Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Fan Level-3 Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Fan Level-4 Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Fan Level-1 Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Fan Level-2 Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Fan Level-3 Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Fan Level-4 Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Up-Down Wing | |||
| Up-Down Position Swing Set | 1: Enabled / 0: Disabled | 1 bit | CWU |
| Up-Down Position Swing Feedback | 1: Enabled / 0: Disabled | 1 bit | CRT |
| Left-Right Wing | |||
| Left-Right Position Swing Set | 1: Enabled / 0: Disabled | 1 bit | CWU |
| Left-Right Position Swing Feedback | 1: Enabled / 0: Disabled | 1 bit | CRT |
| Digital Inputs | |||
| Digital Input 1 | 1: Active / 0: Passive | 1 bit | CWU |
| Digital Input 2 | 1: Active / 0: Passive | 1 bit | CWU |
| Digital Input 3 | 1: Active / 0: Passive | 1 bit | CWU |
Flags: C = Communication, R = Read, W = Write, T = Transmit, U = Update.