Communication was lost with the dust monitor at end X, I believe last Friday. The IOC was reporting errors like 'Command not echoed: ' and a random symbol character. Corey power cycled the Comtrol at end X for me, but this did not fix it. I went out to end X and found the dust monitor moved and off. I checked the fuse and it was blown, so I replaced it. After resetting the front panel options I called Dave and he restarted the IOC. This fixed it.

I also removed the dust monitor at location 2 at end Y that was reading counts even with the zero count purge filter attached. This dust monitor is labeled 'S'.