Cbus updating Comfort

Hi
I have had Cbus connected to Comfort for years.
The two units work together now better than they ever have.
However I do have one issue

I use 2 of the Lighting groups to tell me the our where about in the house.

Mine is
0 out
64 Home
128 Bed
192 Sleep

since installing a comfort KT03 [an upgrade of the old Cbus B&W Touch]

I can now see these levels on my Comfort system

Works well. But if i reset the comfort these level are set to 255 on reboot.

Cytech [the Comfort guys] have given the following reasons.

Cytech:
At reset the reply to Status request to Cbus gives a status of 0 or 255 for all group addresses which are present. This status reply is only capable of giving off or ON status
Hence if the state of the cbus is 64 or 128 then the status becomes 255

Is there a way around this?
thanks in advance
Mike

 

Mike,

Comfort doesn't fully support the 'Dim' levels on UCM reset. The only workaround that might work is if you can detect the Comfort reset and then 'set' the level of the Cbus Group again. Remember that a UCM/Cbus reset will NOT be detected, only a System reset.

See if the following works:
Create a Comfort response that runs only at Startup. In this response send a Cbus Group update to EG. Group 254 and set it to 255. On the Cbus side you need to detect this change from 0 to 255 and then set your Group to 0|64|128|192 again. After this you need to set Group 254 back to 0 to be able to detect the next reset.

Note: On Comfort Startup the UCM might or might not be initialized already, you will have to play around with a small timer delay if your commands are not sent to Cbus on a system reset. I think 'Do Response After Timer Expires' type of delay might do the trick.

Oh, and I assume you have some logic capable device on the Cbus side to do all this...

Ingo

 

Thanks Ingo for the quick reply and Fix
I have lots of Logic
So I will have a play
Mike

 

Hi Ashleigh
These are just levels set by me in a Lighting group
There is no physical/actual group/output associated with this.

I remember years ago adding these groups to Logic in the DIMDN8 Units
[see attached pic]
They are still there but to be honest I didn't really understand what this was meant to do!

Is there more i could do?

I decided to use the groups for this purpose because i could easily display conditions on touchscreens and Homegate.
Mike

 

Thanks Ashleigh

Could you point me to some papers / docs so I can partially understand this.

Apart from posting the screen grab, i have no idea what i did by setting those groups into the "Logic Tab" [for want of a better word!]
Thanks in advance
Mike

 

Hi Ahleigh
Can I have a link?
or is it this?
http://training.clipsal.com/downloads/OpenCBus/OpenCBusProtocolDownloads.html
Mike

 

Yep, that's it.