Add tune location controls

APS-USAXS / usaxs-bluesky-ended-2023

Bluesky instrument for USAXS

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Add tune location controls #146

Closed jilavsky closed 5 years ago

jilavsky commented 5 years ago

Added to spec already - and will be added in March to epics: control where preUSAXStune is run. This is bit touchy, so three PVs are added: Variable/PV which controls where preUSAXStune is done. If set to 0, preUSAXStune is done wherever the instrument is. If set to 1, preUSAXStune moves before tuning to position defined by the two other PVs. The control variable/PV is set by default always to 0 by "startup script" and needs to be set in spec command file (BS "plan"?) to 1 by user intentionally. It cannot be set automatcially or left in place - it could cause disasters. PV names will be provided when added to LAX.

prjemian commented 5 years ago

Thinking we did this in early April. We'll check and verify tomorrow.

prjemian commented 5 years ago

Still a problem. Here's how we tested it.

screen usaxs_user_main.ui, tab Fly scans/SAXS/WAXS
check Use Specific location?
set new values for SX, SY positions (set them to different values then current for diagnostic purposes)
- checkbox: 9idcLAX:USAXS:UseSpecificTuneLocation
- SX: 9idcLAX:USAXS:preUSAXStuneSX
- SY: 9idcLAX:USAXS:preUSAXStuneSY
RE(preUSAXStune()) -- did SX and SY move to expected positions? (not today)

prjemian commented 5 years ago

Add to the preUSAXStune() code that if 9idcLAX:USAXS:UseSpecificTuneLocation is set, then move sample to the X & Y positions indicated.

prjemian commented 5 years ago

FYI, the signals are all available now:

In [1]: terms.preUSAXStune.use_specific_location.value                                                                                      
Out[1]: 0

In [2]: terms.preUSAXStune.sx.value                                                                                                         
Out[2]: 2.0

In [3]: terms.preUSAXStune.sy.value                                                                                                         
Out[3]: -3.0