dim up / down to percentage

[KoBra]

I run this script to change up/down dim to a percentage but when it runs the logic machine goes in overload (100%) Is there another/better way?

Code:

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dimmer = grp.getvalue('1/3/10') step = bit.band(dimmer, 0x07) if step ~= 0 then   addr = '1/4/10'   up = bit.band(dimmer, 0x08) ~= 0   value = grp.getvalue(addr)   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     grp.write(addr, newvalue)   end end os.sleep(0.2)

[Erwin van der Zwart]

You probably run this as resident script at 0 sec correct?

Or do you have it as event based attached to 1/4/10?

If yes then you should change that as this way you run this script every 0.2 seconds..

[KoBra]

Yep run it as resident and as long as I touch no button it is fine. When I change something everything gets slow

[admin]

Use an event script with execution mode set to "Last instance only".

Code:

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out = '32/0/25' dimmer = event.getvalue() step = bit.band(dimmer, 0x07) if step == 0 then   return end up = bit.band(dimmer, 0x08) ~= 0 vstep = up and 5 or -5 value = grp.getvalue(out) while true do   nvalue = value + vstep   nvalue = math.min(nvalue, 100)   nvalue = math.max(nvalue, 0)   if nvalue ~= value then     grp.write(out, nvalue)     value = nvalue     os.sleep(0.2)   else     break   end end

What do you mean by everything gets slow? The script sends 5 telegrams per second which is not a high load. You can lower this by increasing the sleep time. You might need to adjust the step size to keep the dimming speed the same as before.

[KoBra]

Slow i mean TP Load goes to 100%

[admin]

Connect ETS group monitor and see what you get there. If there's another KNX/IP interface on the same TP line you might get a loop where each message is repeated several times before the hop counter becomes 0.