I update the script for the 'Night' OPLEV charge measurements. 
If you are the last person who leaving the LHO in the night - please, run it!
It works for ~ 2.5 hours.

Instructions:
1. Set ISC_Lock state to DOWN
2. Set both ETMs to "ALIGNED" state
3. Run the scripts: scripts directory is /ligo/svncommon/SusSVN/sus/trunk/QUAD/Common/Scripts
run the python files: ./ESD_Night_ETMX.py and the second script in another terminal: ./ESD_Night_ETMY.py
4. If you need to break it - use Ctrl-C, script restore settings even in this case.

If it works, it:
a) In first ~ 30 seconds sets the channels and can warn about troubles with ESD or Alignment. If you see the warning - check this system and press ENTER.
b) Aligns the optical levers
c) During the measurements it should once a second print "Receiving data for GPS second: 1234567" 
c) After all the measurements it restore all the settings back.

If you need to stop the script while you have no access to that machine or don't know who start it and at which machine - just change the requested Lockstate. Script checks if the requested state is DOWN once a 30 seconds and stops if the state is changed. 

If something was wrong the script was stopped but settings are not restored - you can use  ./ESD Restore_Settings.py . 

Just in case: scripts modify follow settings:
1. L3 Lock:
   Bias Voltage - 0
   Offset - green light
   Ramp time - 5s
2. ESD linearization:    Bypass - ON  (on ETMY it is already ON)
3. For ETMY:   turn on Hi-voltage driver.