NSL rate (sync marker) about mec HOT 4 OPEN

Discussing with Nick, it turns out I just had to use x.nsl._config['rate'] = 1 to set the rate after initialization. So I tested the scripts and they do behave very closely to what I want (the DAQ doesn't make damaged event anymore and we save the right number of images). There is only one small behavior I would like to sort out. When I change the rate from 10 to 1 Hz, I want to make sure it is reversed back to 10 Hz just before the completion of the script which execute the rate change. So, I use op.x.nsl._config['rate'] = 10 at the end of the script to make sure the configuration of the plan has the right rate (for whoever takes the beam after, if not the current operator). While it seems to work (x.nsl.config does return a rate of 10), the actual GUI shows that the sync marker is still at 1 Hz. I have the feeling that it is because I dont run a plan to push for the configuration. If that's true, of course, I am not going to do this just to reset the rate back to 10 Hz. Would there be a less 'intrusive' way to make sure the sync marker is indeed back to 10 Hz?

from mec.

@egaltier if you change the configured rate back to 10, that will be pushed to the sequencer whenever the next shot plan is executed.

from mec.

Right, whenever the plan is executed. And I have check that this part works. I worry about this situation: we are done with a shift, but Eric C. wants to take some test shot for debugging purposes. He will not be using the scripts for the shots so there will be no plan that will push the sync marker back to 10 Hz. I have looked at his module and in theory it doesn't look like he is checking the sync marker at all. So I do believe we are ok. But it will be safer if we can make sure that the sync marker is pushed back to its original state, and trying to do so without pushing an entire plan (since I would assume this would be an overkill). Maybe we just toggle the value of the button's PV itself?

from mec.

It sounds like we need a special shot plan for this, as you suggested in your request. This should not be hard to do.

from mec.