Hi Everyone,

 

My ISY994 was working great for about a year but all of a sudden it no longer seems to be:

 

1) constantly/automatically updating the device statuses (on, off, closed,etc)

2) Running programs triggered by status changes in the above mentioned devices, which makes sense if it doesn't know the statuses have changed.

 

If I manually query the devices their status will update, and the programs are triggered.

 

Anybody have any ideas?   

 

Mark

Hi Mark,

 

It seems a little early for you to be experiencing the dreaded 2-year PLM failure but if ISY doesn't know about status changes, your PLM might have lost some links OR something has been introduced into your home environment that is causing communication problems.

If this happened to me, I would wait for a quiet time when the devices aren't changing state and then select to restore modem. If you use RF devices and have a 994 pro then you may want to deselect writing to battery powered devices first. All you want to do is restore the PLM links and this is done in the first 30-ish seconds of the restore modem operation.

If this fixes your problem, good but be on the lookout for future failures. If these occur, you may have capacitors that are failing. Search for PLM reliability and you'll find how this can easily be fixed.

 

With the outstanding help of Lee and other members of this board and Michel from UDI, I have been able to fix all of the problems that have occurred in my system. I am confident that your problem will not be a mystery for long.

Good Luck

Greg

Check the number of links in the PLM.    If the PLM link database is reset you will see the symptoms described.

 

File | Restore Modem (PLM) will rebuild the PLM. 

Worked like a champ!  Thanks guys!