Thanks for your comments Matthias. It happened again today, same channels I think. Could it be temperature related? The Pi etc is in the loft and it was around 40C in there today, so the Pi would be somewhat above that.

Mick


On 09/03/17 10:15, Mick Sulley wrote:
My system is Raspberry Pi 3 running owserver etc 3.1p5 with Sheepwalk
RPi3 adapter and RPi3a splitters giving me 8 channels. All devices are
powered, separately from the Pi.  I use python code and pyownet to
monitor and control a mixture of about 35 DS1820 and DS2413

The system has been running fairly successfully for several years, but
today it failed.  I think I can solve the basic failure, the thing that
puzzles me is that when I rebooted 2 of the 8 channels were missing.  I
rebooted again, checked the cabled, still the same two channels
missing.  I then shut it down and power cycled it and then all channels
were back again.

Is this a known issue?  Is there any way to reset a channel other than
power cycle?

Thanks

Mick


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