Kbox MITT CN105 - Mitsubishi Electric KNX Gateway
Product Features
Kbox MITT CN105 is the version of the gateway that connects to Mitsubishi Electric air conditioners through the CN105 connector. It works with indoor units from the PAC, RAC, City Multi VRF and Mr.Slim series.
CN105 is the service connector on the indoor unit board. Kbox MITT CN105 plugs in there, which leaves the wired controller terminal (TB15) free so an existing controller can stay in place.
The setpoint is limited to 19–30 °C in cooling and 17–28 °C in heating. Fan is addressed as 5 levels plus Auto, the vertical vane as 5 positions plus Swing.
Integration Notes
- Required AC setting: on a CN105 connection the indoor unit must be configured to read its thermistor data from itself (the indoor unit sensor). This is the exact opposite of the TB15 model; mixing the two up leaves the ambient temperature never updating.
- Virtual Setpoint Calculation: some Mitsubishi Electric units using the CN105 port cannot transmit the ambient temperature at all. On such a unit this feature keeps comfort-temperature operation working. In ETS, in order: set the "Ambient Temperature" parameter to From Bus, then enable "Selection of Thermistor" and set its "Type" parameter to Only AC suction air thermistor. In the Kbox family this feature exists only on the CN105 model.
- Do not confuse it with TB15: if you will wire into the wired controller terminal, use Kbox MITT TB15.
- Logic units: 10 "Additional Function" blocks, each with 7 logic, 4 arithmetic, 6 comparison and 3 type-conversion operations.
Documents & Downloads
Catalog English
Datasheet
User Manual
Box Contents
- Kbox-MITT KNX gateway
- CN105 Connection Cable
- Wago KNX Terminal
Technical Specifications
| Device | Kbox MITT CN105 - Mitsubishi Electric KNX Gateway |
|---|---|
| AC brand | Mitsubishi Electric |
| Connection port | CN105 |
| Compatible indoor units | PAC, RAC, City Multi VRF, Mr.Slim |
| 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 Mitsubishi Electric indoor unit through the CN105 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 | 19 – 30 °C |
| Heating setpoint range | 17 – 28 °C |
| Ambient temperature source | From the KNX bus (From Bus) |
| Virtual Setpoint Calculation | 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 Auto Level | 1: Enable / 0: Disable | 1 bit | CWU |
| Fan Auto Level Feedback | 1: Enable / 0: Disable | 1 bit | CRT |
| 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-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.