Dali interface dimming - Printable Version

Dali interface dimming - Printable Version

+- LogicMachine Forum (https://forum.logicmachine.net)
+-- Forum: LogicMachine eco-system (https://forum.logicmachine.net/forumdisplay.php?fid=1)
+--- Forum: Gateway (https://forum.logicmachine.net/forumdisplay.php?fid=10)
+--- Thread: Dali interface dimming (/showthread.php?tid=51)

Dali interface dimming - PassivPluss - 29.07.2015

Hi

I have put up an binary switch from Schneider to controll group adress that Dali talk with.

I have to possible ways of controlling the Dali adress, with binary on-off , where the on value may be put in (0-254) in dali interface
and with 1 byte integrer. Then I can put preset values in the swicth that it will send to the Dali Interface.

Is it possible for you to add the "standard" dimming data type to the Dali interface? 4 bit (3 bit control, and break)

This way it can be possible to seemless dim up and down . Or is there another way to do this?

I am using the Dali to control white LED lamps at the moment and later on i will intergrate RGB and RGBW lamps to it.

Passivpluss

RE: Dali interface dimming - PassivPluss - 01.08.2015

Another feature would be to add how long time the dimming should take. Now when i use the value dim it goes for the percentage instantly. A 1-3 seconds grading should look better Smile

RE: Dali interface dimming - Peter - 03.08.2015

+1 for including dali dimming through separate object, so we won't need to script this.
thank you

RE: Dali interface dimming - edgars - 04.08.2015

thanks for suggestion!
currently we will add it into our to-do list and will look at it some time in the future Smile

For now, please do this functionality via scripts.

RE: Dali interface dimming - gjniewenhuijse - 14.09.2015

(04.08.2015, 10:10)edgars Wrote: thanks for suggestion!
currently we will add it into our to-do list and will look at it some time in the future
For now, please do this functionality via scripts.

Can you please give an example how to do this?

RE: Dali interface dimming - PassivPluss - 15.09.2015

And automatic feedback status would be great to add Smile

RE: Dali interface dimming - managementboy - 16.09.2015

is there a way of doing this for DMX too? does someone have a good DMX example for a script doing dimming?

RE: Dali interface dimming - admin - 18.09.2015

Right now we don't have enough resources to implement this.

Here's a function for start/stop dimming:

Code:
function bindimmer(up, down, out, event)
  local main, rev, step, val, new, delay

  step = 10 -- in %
  delay = 0.5 -- in seconds

  -- ignore "stop" command
  val = tonumber(event.datahex, 16)
  if val == 0 then
    return
  end

  -- up, normal mode
  if event.dst == up then
    main, rev = up, down
  -- down, reverse step
  elseif event.dst == down then
    main, rev = down, up
    step = -step
  -- invalid object
  else
    return
  end

  -- current output object value
  val = grp.getvalue(out) or 0

  while true do
    -- main object in "stop" state
    if not grp.getvalue(main) then
      return
    end

    -- reverse object in "start" state
    if grp.getvalue(rev) then
      return
    end

    -- get new value
    new = math.min(100, val + step)
    new = math.max(0, new)

    -- no change, stop
    if new == val then
      return
    end

    -- write new value
    val = new
    grp.write(out, new, dt.scale)

    -- wait for next run
    os.sleep(delay)
  end
end

Usage:

1. Add bindimmer function to Common functions

2. Create 3 objects:
1/1/1 - binary (dim up)
1/1/2 - binary (dim down)
1/1/3 - 1-byte scale (output)

3. Create an event script for each binary object:

Code:
bindimmer('1/1/1', '1/1/2', '1/1/3', event)

4. You can tune step and delay variables in bindimmer function to adjust dimming speed

RE: Dali interface dimming - gjniewenhuijse - 18.09.2015

Thanks for the example, but a standard wall switch has two groupaddresses:
- turn on/off (1bit)
- dimming (4 bit, 3bit controlled - 03.007 dim/blinds step)

How to implement this for dali?

RE: Dali interface dimming - gjniewenhuijse - 16.10.2015

(18.09.2015, 13:30)gjniewenhuijse Wrote: Thanks for the example, but a standard wall switch has two groupaddresses:
- turn on/off (1bit)
- dimming (4 bit, 3bit controlled - 03.007 dim/blinds step)

How to implement this for dali?

Is there already a solution for a default knx dimmer button:
up short: on
down short: off
up long: dim + started
down long: dim - started

Its important to control the standard 4 bit, 3bit controlled object for smooth dimming when using dali.

RE: Dali interface dimming - Erwin van der Zwart - 17.10.2015

Hi Gert Jan,

There is no long/short detection by default, the only way to do that is with custom SVG buttons
that hold JavaScript to detect long/short

But why do it so hard if you can easely use byte value object with a slider?

BR,

Erwin

RE: Dali interface dimming - PassivPluss - 18.10.2015

This is to get dimming from a psycical switch. But if you use one rocker for up and one for down then this will work Smile

from the web application the easiest way is from slider. Smile

RE: Dali interface dimming - Erwin van der Zwart - 18.10.2015

Hi PassivPluss,

My remark was on the long/short press from visu.

If you have a physical switch you can use our pushbutton interface MTN670802
There is a long/short press detection parameter with value stepper to send byte value.
You can set stepsize, direction and behavior when reaching min/max. This should work for you. Also all
KNX pushbuttons (plus) have this feature.

BR,

Erwin

RE: Dali interface dimming - admin - 19.10.2015

Have you tried this script?
http://forum.logicmachine.net/showthread.php?tid=13

RE: Dali interface dimming - gjniewenhuijse - 20.10.2015

(19.10.2015, 06:25)admin Wrote: Have you tried this script?
http://forum.logicmachine.net/showthread.php?tid=13

thanks, that works for me.

I added a resident script for dimming:

Code:
lastDali = 1

for i = 0, lastDali do
  dimObjects = grp.tag('DALI_DIM_'..i)
  for key, object in pairs(dimObjects) do
    dimmer = object.data
    step = bit.band(dimmer, 0x07)

    if step ~= 0 then
      lvObjects = grp.tag('DALI_LV_'..i)
      for key, lvobject in pairs(lvObjects) do
        up = bit.band(dimmer, 0x08) ~= 0
        value = lvobject.data

        if up then
          newvalue = value + 5
        else
          newvalue = value - 5
        end

        -- clamp between 0 and 100
        newvalue = math.min(newvalue, 100)
        newvalue = math.max(newvalue, 0)

        if newvalue ~= value then
          lvobject:write(newvalue)
        end
      end
    end
  end
  
end

os.sleep(0.1)

And i added a script for setting the status

Code:
require('user.dali')
lastDali = 1

for i = 0, lastDali do
  res = dalicmd('internal', 'queryactual', { addrtype = 'short', address = i })
  if res then
    curr = math.floor(res:byte() / 2.54)
    
    -- set target level status
    targetObjects = grp.tag('DALI_SLV_'..i)
    for key, object in pairs(targetObjects) do
      prev = object.data
      if curr ~= prev then
        targetObjects:response(curr)
        end
    end
    
    -- set target on/off status
    targetObjects = grp.tag('DALI_STAT_'..i)
    for key, object in pairs(targetObjects) do
      prev = object.data
      if (curr>0) ~= prev then
        targetObjects:response( curr > 0 )
        end
    end
    
  end
end

os.sleep(0.1)

Next todo is a scene handler for DALI, see other thread Smile