Delay for DALI !

[admin]

DALI bus is slow so you should minimize the number of requests. If you want to update two objects at once better do it like this:

Code:

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function queryactual(short, addr1, addr2)   local res, err = dalicmd('internal', 'queryactual', { addrtype = 'short', address = short })   if res then     local val = res:byte()     if val > 0 then       val = math.floor(val / 2.54 + 0.5)       val = math.max(1, val)     end     grp.checkupdate(addr1, val)     grp.checkupdate(addr2, val)   end end queryactual(0, '1/1/0', '1/2/0')

You should also add at least one second delay between queries otherwise you will overload the DALI bus.

[davidchispas]

DALI bus is slow so you should minimize the number of requests. If you want to update two objects at once better do it like this:

Code:

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function queryactual(short, addr1, addr2)   local res, err = dalicmd('internal', 'queryactual', { addrtype = 'short', address = short })   if res then     local val = res:byte()     if val > 0 then       val = math.floor(val / 2.54 + 0.5)       val = math.max(1, val)     end     grp.checkupdate(addr1, val)     grp.checkupdate(addr2, val)   end end queryactual(0, '1/1/0', '1/2/0')

You should also add at least one second delay between queries otherwise you will overload the DALI bus.

Thanks Admin, what is more advisable not to saturate the dali bus? make a query script for each group of ballasts, or make a single script for all ballasts?

I understand that if 10 scripts are executed every 3-5 seconds at a time it is worse, right?

[admin]

Single script is better because you can control the delay between each polling. The easiest way is just to add sleep after each queryactual call.

[davidchispas]

Hello, in the Dali controls, having a minimum physical regulation value, the regulation bar is always at very high values, since I have a status object associated with it.
To fix this, I have created a script to fool my client.

In this case, I have a ballast with a minimum physical value of 161 which is 63%. This tells us that we have 37% regulation.

1- I made this script so that my control object, when I send 1%, actually send the value 63% and from there the final result would increase until it reaches 100%.

2- I have created another status script, which does the same calculation but in reverse.

My problem here is that the calculations are not exactly identical in one script and the other, with a minimal difference due to the decimals.

Surely there is another way to achieve this ... can you help me?


Control object% visu (1/3/9)
Status object% visu (1/4/9)
Ballast control object (1/5/9)
Ballast Status Object (1/6/9)





Control script (1/3/9)

Code:

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--Minimum physical value of ballast VFM = 63 --Regulation output object VReg= '1/5/9' ------------------------------------ value = event.getvalue() OP1 = (100-VFM)/100 OP2 = (value*OP1)+VFM if value==0 then   grp.write(VReg, 0) elseif value>=1 then   grp.write(VReg, OP2) end

State script (1/6/9)

Code:

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--Minimum physical value of ballast VFM = 63 --Regulation output object VReg= '1/4/9' ------------------------------------ value = event.getvalue() OP1 = (100-VFM)/100 OP2 = (value-VFM)/OP1 if value == VFM then   grp.write(VReg, 1) elseif value ~= VFM then   grp.write(VReg, OP2) end

[Daniel]

Try rounding it y = math.floor(x + 0.5)