EPICS

Read camera via python

• simple example python3 script: facet-E320/epics/cam_read: main.py

EPICS camera information

• Camera info:
  model_nameListFACETProf.m in https://www.slac.stanford.edu/cgi-bin/cvsweb/matlab/toolbox/?cvsroot=LCLS

• Camera orientations: hard-coded rotations in:
  profmon_grab.m in https://www.slac.stanford.edu/cgi-bin/cvsweb/matlab/toolbox/?cvsroot=LCLS
  For example there is code like:
  
  

  % Set rotated image for CHER cameras.
  isRot=ismember(pv,{'CMOS:LI20:3506','CMOS:LI20:3505','CMOS:LI20:3515'});
  props(isRot,17)=1;
  % ... and flip CMOS camera which does not have a :Y_ORIENT PV
  isFlp=ismember(pv,{});
  props(isFlp,9)=1;

Global shutter for background data

• IMPORTANT: the shutter affects the beam globally, call ACR before putting shutter in
• Information taken from:  https://github.com/slaclab/facet-matlabTNG/blob/master/F2_DAQ/F2_runDAQ.m
  see:  function grab_BG(obj)
• example script: git → epics/shutter_control/main_01.py

DAQ code

• https://github.com/slaclab/facet-matlabTNG/blob/master/F2_DAQ/F2_runDAQ.m

List all PVs

• findpv CAMR:LI20:108%  (note that wildcard is '%')

PyEPICS

https://pyepics.github.io/pyepics/pv.html