I just sat down in the control room, and discovered the PMC (and everything else) unlocked. I relocked the PMC, but the MC wasn't coming back. After a moment of looking around, I discovered that the WFS were on, and railing. I ran the "turn WFS off" script, and the MC came back right away, and the WFS came on as they should.
We need to relook at the WFS script, or the MC down script, to make sure that any time the MC is unlocked, no matter why it unlocked, the WFS output is off and the filter histories are cleared.
The only script that can currently take this action is the MC autolocker. If that is disabled first and the PMC unlocks later, the WFS will not be turned off. During the last round of discussions we had about the autolocker script, sometime last Nov, we decided that too much automation is not desirable and that the autolocker should be kept as simple as possible.