ISY / ELK Rules

[TommyJames]

Can you please give me examples or types of HA rules you have 'living' on the ELK vs ISY and vice versa.  I have read that ISY does time based really well and ELK does event based really well.  I am new and have not even purchased another products yet.
 
For example,
 
I would put the outside lights on the  ISY to come on around sunrise.
 
For the ELK, I would put if FIRE is detected turn on these lights in the house and turn off HVAC fans.
 
Any addtional thoughts would be welcome.
 
Thanks!!!
 
 

 

[wuench]

Since installing the optional elk module on the ISY, I have put all lighting rules on the ISY, no matter what.  I no longer even sync my lighting config to the Elk.  As far as the Elk is concerned there is no lighting control.   The ISY logic is a little more complex than the Elk, but I like having everything in one place to prevent side effects and to facilitate troubleshooting.

 

[iostream212]

+1 wuench. I use isy for almost everything now and it works great. The only thing I need Elk for is chimes and tasks. See http://forum.universal-devices.com/viewtopic.php?t=11290
Tasks and chimes

 

[Tunaman]

Most of my logic resides on the ISY, with exception of time-based events.

For example, I have a series is scenes that are based on a timeframe, I. E. Pre-wake, wake...
On the elk, I use custom settings to set the time I want to fire them, and matching rules that fire based on the custom settings. Since the custom settings can be changed from the keypad, or from Perl scripts I have running via cron on a pogoplug running debian, I have a very easy way to have flexible schedules. Since the isy doesn't yet support time variables, this was the most flexible option.

 

[Madcodger]

There are likely ways to handle this on the ISY that are beyond my expertise, but I find the Elk does a better job with changes in state, such as a door opening rather than the door being open. So for those types of scenarios I tend to use RP and Elk Rules.

I have the two connected via the Elk module on ISY and am very happy with the combo, and don't particularly care where the rule resides except that I can access the ISY from my Mac, which is handy.