You can add/remove any data you want in the epicsArchive data group readout.
The path is /cds/group/pcds/dist/pds/tmo/misc/
The tmo file we use is epicsArch_tmo.txt. Let's look at two features of this
Add a comment with a #
# Power meter at IM2K4
Add a pointer name of your choosing with *
*IM2K4_XrayPower
For the LCLS2 DAQ, you should also specify which protocol is used to access the PV:
Add the pv name specifying whether it is read using channel access (ca), or pv access (pva) at the end
IM2K4:PPM:SPM:VOLT_RBV ca
For the LCLS1 DAQ, this you only list the PV
IM2K4:PPM:SPM:VOLT_RBV
You can made file with a subset of PVs, give it a meaningful name like epicsArch_vmi.txt for all the vmi variables to record. You can then reference that file with '<' in the main file as below.
# MPOD/VMI information
< epicsArch_vmi.txt
LCLS-II Data Acquisition and Analysis
Online Analysis Tutorial (AMI) - presented at 2014 SSR/LCLS Users Meeting: LCLS Data Analysis Workshop
DAQ Overview and Online Analysis - presented at 2010 SSRL/LCLS Users Meeting : LCLS Data Analysis Workshop
Online Analysis Design - Matt's presentation for Jan 2012 DAQ Meeting
DAQ Troubleshooting - first level - Trouble Shooting guide for scientists or first level responders.
Pedestals for detector correction