I stopped the IOC for the dust monitors in the optics labs to test them with revised code. I did this twice. The first time I tested the new code as controls on h0epics2 running Ubuntu 10.04.4 LTS. This unsurprisingly did not work, because it was compiled on sysadmin0 running Ubuntu 12.04.2 LTS (GNU/Linux 3.2.0-41-generic x86_64). The second time I ran it as patrick.thomas on opsws8 running Ubuntu 12.04.2 LTS (GNU/Linux 3.2.0-51-generic x86_64), which did work.

This was done from approximately 15:50 to 16:35. The old IOC is running again and was burtrestored to 08:00 today. However, there was a problem with the EDCU, which did not seem reconnect to the channels after the old IOC was brought back. Dave restarted the DAQ and it seems to be working now as of around 17:20.

I have attached plots of the relevant channels over the time in question. When the mode is changing the data should be good. The data appears to have been lost for these dust monitors from around 3:56 PM to 5:10 PM.