Controlling External Devices

[Roger Guay]

Hello All,

I've searched the archives, but found only limited information about  
controlling external devices with Rev.  As I need something somewhat  
more sophisticated and reliable than X-10 devices, I would like to  
ask anew if anyone is doing this kind of work?  What would be ideal  
is an external Programable Logic Controller that we could communicate  
with via Rev.  Any help will be greatly appreciated!

Thanks, Roger