Comfort Automation/ Security System Forums

The slave will only send zone changes when they occur, it does not automatically end a message when it i not doing anyting. It is best to check the event log to see if there is any slave zone troubke

Ok, I'll monitor it for a few days and see if any other failures show up.

As I said, the zone messages from the Slave all seem to be fine.

I too used to get a Comms failure on a CM9000 with a SEM01   Wasn't there an issue with the latest SEM01 firmware that caused a timeout while it searched for an EEPROM?

I fixed this by downgrading my SEM01 firmware.  I believe there was due to be a newer update that would avoid this issue for the SEM.  However wondering if caravanboy has this issue and why he gets the comms failure for a while.

Interesting. 

Just checked and my last batch of firmware updates (including SEM01) was Jan 2025. Apparently I had issues with getting the correct firmware at the time and Cytech had to point me at a different one. (from 7.141 to 7.207).

Guess what I also found from Dec 2025!!!! A note saying that after a system reset I DID have a Slave Comms failure.   I had no recollection of that!

Thanks for the info!  At least I know the slave probably was NOT damaged by the storm. 

If this is the only time it causes the problem I can live with that then. Unless Cytech can advise if there is a newer firmware that fixes this timing issue?