Kbox DKN - Daikin P1P2 KNX Gateway
Product Features
Kbox DKN connects Daikin VRV indoor units to a KNX automation system. The link is made over the indoor unit's P1/P2 communication line: the gateway listens on the line, pushes the unit's real state onto KNX and passes bus commands back to the unit.
It carries the widest setpoint range in the Kbox family — 16–32 °C in both cooling and heating. That makes it usable in applications outside the normal comfort band, such as server rooms, warehouses or greenhouses, without fighting the limit parameters.
Fan control is 5 levels plus Auto and, unlike the other models, includes a separate Fan Level-0 object. The vertical vane likewise exposes a Position 0 object alongside its 5 positions. These two objects exist only on Kbox DKN and let the "off" state of the fan and the vane be addressed separately from the bus.
Integration Notes
- VRV only: the device is built for Daikin's VRV indoor units. Sky Air, split or S21-port residential units will not work with this model — for the S21 port use Kbox DKN-M-S21.
- P1/P2 polarity: the P1/P2 line is not polarity sensitive, but if a central controller shares the line, check the indoor unit group addressing to avoid an address clash.
- Thermistor source: "Selection of Thermistor" decides whether the ambient temperature comes from the indoor unit's suction sensor or from the value fed in over KNX.
- Logic units: 10 "Additional Function" blocks, each with 7 logic, 4 arithmetic, 6 comparison and 3 type-conversion operations. Window contact and scene scenarios run inside the device.
Documents & Downloads
Box Contents
- Kbox-DKN KNX gateway
- Wago KNX Terminal
Technical Specifications
| Device | Kbox DKN - Daikin P1P2 KNX Gateway |
|---|---|
| AC brand | Daikin |
| Connection port | P1/P2 |
| Compatible indoor units | VRV |
| 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 Daikin indoor unit through the P1/P2 port. The parameters below are configured in ETS.
| Operating modes | Cool / Heat / Dry / Fan Only / Auto |
|---|---|
| Fan speed | 5 levels + Auto |
| Up-Down Wing | 5 addressable positions + Swing |
| Left-Right Wing | Yes |
| Cooling setpoint range | 16 – 32 °C |
| Heating setpoint range | 16 – 32 °C |
| Ambient temperature source | From the KNX bus (From Bus) |
| Selection of Thermistor | Yes |
| Logic and arithmetic units | 10 functions, each with 7 logic, 4 arithmetic, 6 comparison and 3 type-conversion operations |
| Scene function | Yes |
| Window / occupancy / sleep contact | Yes |
KNX Group Objects
The device exposes 70 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…5 (Enumerated) | 1 byte | CWU |
| Fan Level Feedback | 0…5 (Enumerated) | 1 byte | CRT |
| Fan Level +/- Set | 1: Increase / 0: Decrease | 1 bit | CWU |
| Fan Level-0 Set | 1: Enable / 0: Disable | 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-5 Set | 1: Enable / 0: Disable | 1 bit | CWU |
| Fan Level-0 Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| 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 |
| Fan Level-5 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 |
| Up-Down Wing Set | Percentage (Scaling) | 1 byte | CWU |
| Up-Down Wing Feedback | Percentage (Scaling) | 1 byte | CRT |
| Up-Down Wing Set | 1…5 (Enumerated) | 1 byte | CWU |
| Up-Down Wing Feedback | 1…5 (Enumerated) | 1 byte | CRT |
| Up-Down Wing +/- Set | 1: Increase / 0: Decrease | 1 bit | CWU |
| Up-Down Wing Position 1 Set | 1: Set Position 1 / 0: NA | 1 bit | CWU |
| Up-Down Wing Position 2 Set | 1: Set Position 2 / 0: NA | 1 bit | CWU |
| Up-Down Wing Position 3 Set | 1: Set Position 3 / 0: NA | 1 bit | CWU |
| Up-Down Wing Position 4 Set | 1: Set Position 4 / 0: NA | 1 bit | CWU |
| Up-Down Wing Position 5 Set | 1: Set Position 5 / 0: NA | 1 bit | CWU |
| Up-Down Wing Position 1 Feedback | 1: Active / 0: Inactive | 1 bit | CRT |
| Up-Down Wing Position 2 Feedback | 1: Active / 0: Inactive | 1 bit | CRT |
| Up-Down Wing Position 3 Feedback | 1: Active / 0: Inactive | 1 bit | CRT |
| Up-Down Wing Position 4 Feedback | 1: Active / 0: Inactive | 1 bit | CRT |
| Up-Down Wing Position 5 Feedback | 1: Active / 0: Inactive | 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 |
| Energy Saving | |||
| Window Contact | 1: Enable / 0: Disable | 1 bit | CWU |
| Window Contact Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Occupancy Contact | 1: Enable / 0: Disable | 1 bit | CWU |
| Occupancy Contact Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| Sleep Contact | 1: Enable / 0: Disable | 1 bit | CWU |
| 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.