Re: CBUS assistance

[Kevin Hawkins <lists@xxxxxxxxxxxxxxxxx>]

from my experience the C-Bus reported state of a groups is always
correct and consistent across the network - there is no memory of old
states that I have ever seen unless a network becomes physically broken.
Even in those circumstances when they are reconnected there are very
elaborate arbitration mechanisms (really difficult to write code for)
in place to restore consistent state and all keylamp indicators will
reflect the new consistent state and control it dependably.   What you
are seeing here Chris is because the buttons on the dimmers themselves
do not generate any C-Bus control - they are literally just local
control buttons for the dimmer output  . they don't even send messages
on C-Bus when pressed so C-Bus doesn't know you have altered a group state.

Now scenes, indicators and consistency  ... that seems  another matter
entirely  ;-)

K

Christopher Purves wrote:
> Which switch are you using ? I think you may need to support scenes to
get this to work. I am only used to DLT's on which this is quite possible
as you describe but you would not define a new group to do it. I have
observed that you can get some weird behavour on cbus - it seems to have
memory. If a switch thinks something is off but you turned it on on the
dimmer itself for example a single push of the switch  would not turn it
off. You would need to press it twice to get the desired effect. You can
get stuff like this after power cuts until the state all gets itself sorted
out.
>
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> Chris
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> ________________________________
>
>> To: ukha_d@xxxxxxx
>> From: yahoo1@xxxxxxx
>> Date: Tue, 14 Nov 2006 10:12:17 +0000
>> Subject: [ukha_d] CBUS assistance
>>
>> Hi
>> trying to get this to work with no success
>> I have 2 groups setup for 2 channels on a dimmer unit (say group 1
and
>> group 2)
>> these are controlled fine by a switch (switch 1 dimmer for group
1,
>> switch 2 dimmer for group 2)
>> What i'm trying to configure is a separate switch elsewhere which
will
>> either turn both these lights off or on.
>> I configured on the dimmer a new group which had group 1 and group
2
>> selected (call it group 3)
>> now when I configure a button for on/off , i get some very
different
>> results.
>> if both group 1 & 2 are off or on, it all works fine, i can
turn both
>> lights on/off via group3
>> where it stuffs up is if say group 1 is on, it then turns on group
2 ok
>> but when turning off, it only turns off group 2 and leaves group 1
on
>> Am i missing something, is this possible?
>> Adrian
>>
>>
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