MDT Push Button Smart 86 Configuration Notes

The Push Button Smart 86 is a good option where the wall switches warrant an upgrade from the simple “Press” buttons installed initially. They’re highly configurable, with 6 buttons configurable as a simple set of 6 functions or up to 12 functions (arranged as 3 sets of 4 functions) via multiple ‘levels’ (as they’re called in the documentation but really they’re ‘tabs’ or ‘pages’).

If there’s one downside to these switches, it’s that they have a lot of configuration options and the programming isn’t that intuitive (and the documentation isn’t that great – at least not in English).

These notes describe how they are configured and some of the lessons from trial-and-error configuration. Bold text indicates changes from the defaults. Verified for v2.5 of the KNX database.

Group Objects

“106 Day / Night” links to Group Address 1/0/1 (Ground Floor Night Mode)

“107 Presence” links to Group Address 0/0/4 (Occupied)

“112 Time” links to Group Address 0/0/1 (Time from IP Interface Time Server function)

“114 Time/Date” links to Group Address 0/0/3 (Date/Time from IP Interface Time Server function)

Parameter

Hardware select

The same KNX data file supports a few different devices and here it’s necessary to select the specific variant:

  • Glass Push Button II Smart (BE-GT20x.01)
  • Push Button Smart 86 (BE-TAS86.01)

Operation / Display

General settings

Send “operation” cyclic: not active

Startup time: 2s

Behaviour after bus power return:

  • Value for toggle: request
  • Day/Night object: request
  • Date/Time: request

Language: German / English

Value for day/night: Night = 1 / Day = 0

Display settings

Background colour: day = white, night = black

Font size in function name: big

Font size for labelling of push buttons: small

Behaviour if the text is too long: text size is reduced

Proximity sensor: not active

Behaviour at presence: display is switched on and Standby is exited

Adapt display brightness to ambience: yes

Brightness: brightness level 8

Minimum brightness at day: 10%

Minimum brightness at night: 3%

Overnight shutdown in Standby: threshold 2 (dark)

user defined color [1-3] – no changes from defaults

Priority of HVAC-Status/RHCC: Frost/Comfort/Night/Standby

Information screen

Color of orientation-LEDs in standby: white

Standby permanently visible in the upper keypad (from R2.4): not active

Timeout until standby (0 = never): 20s

Standby display: individually in change

Change standby display after: 5s

Standby display at day: standby in the upper keypad, LED A/B

  • State element 1: time
  • State element 2: not active
  • State element 3: not active
  • State element 4: not active
  • Indicated level after standby: Level 3 (i.e. Scenes)
    • Note: Only available once the Levels have been enabled under Push Buttons

Standby display at night: behaviour like day

  • Indicated level after standby: Level 3 (i.e. Scenes)
    • Note: Only available once the Levels have been enabled under Push Buttons

Action at push button if display is disabled: Standby is exited

Action at push button if Standby is active: function is executed

State value 1: not active

State value 2: not active

State value 3: not active

Message 1: not active

Message 2: not active

Message 3: not active

Message 4: not active

Message text: not active

Cancel the message via object: not active, only push of button and duration

Color of message text: red

Indicate a message via LEDs: no

Push button functions

Display Mode

  • 6 functions / 1-2 levels
    • Note: Uses hidden buttons (at bottom) to move between ‘levels’, if 2 levels used
  • 4 functions / 1-3 levels
    • Note: Uses top buttons to move between ‘levels’

2. level / 8 functions: active

3. level / 12 functions: active

Level 1 (Push buttons 1/2 central, push buttons 3/4 bottom)

  • Push button 1/2 (left, right): single-button function
  • Push button 3/4 (left, right): single-button function

Level 2 (Push buttons 5/6 central, push buttons 7/8 bottom) – assuming no more than 2 blinds

  • Push button 5/6 (left, right): two-button function
  • Push button 7/8 (left, right): two-button function

Level 3 (Push buttons 9/10 central, push buttons 11/12 bottom)

  • Push button 9/10 (left, right): single-button function
  • Push button 11/12 (left, right): single-button function

Toggle between levels over Scene object: not active

Slap / cleaning function: not active

Reaction time at the push button: fast

Time for long push of button: 0.4s

Level Setting

Level 1 (Functions 1-4)

  • Level Labelling – “Lights
  • Color of symbol – “foreground color”
  • Level symbol – “Symbol 17: light on”

Level 2 (Functions 5-8)

  • Level Labelling – “Blinds
  • Color of symbol – “foreground color”
  • Level symbol – “Symbol 12: shutter >90%”

Level 3 (Functions 9-12)

  • Level Labelling – “Scenes
  • Color of symbol – “foreground color”
  • Level symbol – “Symbol 24: scene”
PB1: Push Button 1
PB2: Push Button 2

PB9: Lights Off

Description of objects: “Lights Off

Single function of push button: scene

Save scene: no save

Scene number: <As Appropriate>

Function name: over text input

  • Text: Off

Color of symbol: red

Symbol: Symbol 30: on/off

Blocking object: not active

PB9: Lights On

Description of objects: “Lights On

Single function of push button: scene

Save scene: no save

Scene numberL <As Appropriate>

Function name: over text input

  • Text: On

State LED

Logic

x

Miscellaneous Notes

  1. For blinds, in Two-Button mode, set the “Operation function” to: “short=up/down / long=stop/…”
  2. Scene “Off” is the top-left button, symbol 30 (On/Off) and colour Red
  3. Scene “On” is the top-right button, symbol 30 (OnOff) and colour Dark Green

CC BY-SA 4.0 MDT Push Button Smart 86 Configuration Notes by Marsh Flatts Farm Self Build Diary is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.