Ryan, Jason, Patrick, Filiberto

As part of troubleshooting the PSL we hardware power cycled the PSL Beckhoff computer in the diode room this morning, along with all of the associated diode power supplies and a chassis in the LVEA.

I had guessed that everything would autostart, but I was wrong, so I took the opportunity to set it up to do so. This required putting a shortcut to the EPICS IOC startup script in the C:\TwinCAT\3.1\Target\StartUp directory (see attached screenshots), and selecting an option in the TwinCAT Visual Studio project to autostart the TwinCAT runtime. We software restarted the computer again to test this, and after logging in, the Beckhoff runtime and PLC code started, along with the EPICS IOC, but the visualization did not. I found documentation that pointed to the location of the executable that starts the visualization, and added a shortcut to that to the startup directory as well. We didn't have time to restart the computer again to see if that would autostart correctly.

For some reason there seemed to be issues with processes reconnecting to the EPICS IOC channels. I tested running caget on the Beckhoff computer itself and got a message about connecting to two different instances of the channel, and a couple of pop up windows related I think to allowing network access, which I said to allow. caget worked, although it gave a blank space for the value, so I tried it again with an invalid channel name, which it correctly gave an error for. On the Linux workstation we were using, the MEDM screens were not reconnecting, even after closing and reopening them, but again caget worked. We had to restart the entire medm process for it to reconnect.

The EDCU and SDF also had issues reconnecting, and they had to be restarted too.