At the top of the big screen, you see a crude-but-handy beamline monitor.  It looks like this:


This provides a (very) concise overview of the state of the beamline.

Line 1

  • BMM is enabled (green) or disable (red)
  • The BM, FE, & user photon shutters are open (green) or closed (red)
  • The ring current
  • The state of vacuum sections 1 through 7 -- green means vaccum level is OK, red means vacuum level is high
  • The state of the in-vacuum motors, 4 on the DCM, 2 on the focusing mirror, 2 on the harmonic rejection mirror -- green means temperature is cool, red means temperature is high
  • The open (green) or closed (red) state of the 3 front end gate valves and the 6 beamline gate valves

Line 2

  • The energy position of the monochromator
  • The signals on the I0 and It ion chambers, measured in nanoamps
  • The current operation at the beamline, options are: idle (white), XAFS scan (pink), line scan (cyan), area scan (yellow), or time scan (blue)

Line 3

  • Positions of common sample motors and size of sample slits

Running cadashboard and screen placement

  1. Launch an xterm by typing xterm -title CAdashboard at any command line or by hitting Alt-F2 and typing xterm -title CAdashboard.
  2. Run cadashboard.
  3. Resize the xterm and move it to the top of the big screen.
  4. Right click on the frame, select More actions, then Keep above others.
  5. It is handy to remove the window from the taskbar.  This can be done by right click on the fram, then More actions, then Special window settings. Click OK in the info dialog. In the "Window specific settings" dialog click on the "Arrangement and Access tab", enable Skip taskbar with arguments Apply now and Yes.

cadashboard has a mode for XRD using the goniometer.  At step 2, run cadashboard xrd, that is, explicitly provide the "xrd" argument to the program.