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Table of Contents

Common Features

DAQ epicsArch - Archived Data

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:

1. Adding a single variable to the file

Add a comment with a #

Code Block
# Power meter at IM2K4

Add a pointer name of your choosing with *

Code Block
*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    

Code Block
IM2K4:PPM:SPM:VOLT_RBV ca

For the LCLS1 DAQ, you only list the PV

Code Block
IM2K4:PPM:SPM:VOLT_RBV

2. Add a whole file with a bunch of variables

You can make a 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.

Code Block
# MPOD/VMI information
< epicsArch_vmi.txt

LCLS2 DAQ

LCLS-II Data Acquisition and Analysis

LCLS1 DAQ

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 

Troubleshooting - first level - Trouble Shooting guide for scientists or first level responders.
Pedestals for detector correction

Operating the DAQ

AMI Online Monitoring

Python Scripting