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1. Open terminal from the mfx-daq machine

2. go to the daqcontrol directory

   Code Block
   language py theme Midnight firstline 1
   cd daqcontrol/misc ls

   you should now be in
   /reg/neh/operator/mfxopr/daqconfig/misc or /cds/home/opr/mfxopr/daqconfig/misc

The files saved into the daq are stored in the epicsArch.txt file. This file calls the other text files, for cleanliness. Each "sub-text" file, such as epicsArch_sds.txt contains the alias in the data stream and the corresponding PV. 

current epicsArch.txt is recording beamline and sequencer data,  but we are not using the ePix10K or SMB setup and so these values are commented out.

< epicsArch_MFX_sds.txt

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You can see the files commented out at the top. These are  no longer deployed and so the daq throws out errors. The daq will still record though.

The syntax seems to be is an asterisk precedes the alias name for the data in the XTC file, preceded by an asterisk. Below , the alias is the EPICS PV name you want recorded.

If you place multiple aliases with the same name before the first underscore, then the DAQ will sort these into the same dropdown menu. For example, laserfs_T_phase, laserfs_TT_amp, and laserfs_atm will all be added to a dropdown menu labeled "laserfs" in the PV list. Dropdown menus can be nested within other dropdown menus by creating aliases with the same name before the next underscore.

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