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For a complete overview, detailed instructions and examples please see the "MATLAB Programmer's Guide for FACET physicists", attached to this Confluence page.

Here is a short description:

A LCLS event system has been setup to read devices synchronous with beam crossing, such as BPMS and toroids. FACET beam synchronous acquisition will interface with both EPICS and the VMS-based SCP. Implementation of this interface is currently in process. The BSA system will be usable from within Matlab. Note that this is not implemented for image data collection, which is described in a separate section of the Programmer's Guide.

Basically, the steps for using BSA are:

• Reserve an event definition
• Change default parameters
• Start data acquisition
• Release event definition

Examples
to be added

more coming...

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VI. AIDA: Accelerator Integrated Data Access

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To obtain control system names and values, AIDA is accessible from the linux command line, via aidaWeb https://seal.slac.stanford.edu/aidaweb, through matlab and other language interfaces.

command line tools

• Wiki Markup
  aidalist: \[[http://www.slac.stanford.edu/grp/cd/soft/aida/aida_ug.html#What

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  aidaget, aidaset: \[[https://confluence.slac.stanford.edu/display/ACCSOFT/AIDA+Command-line+tools

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matlab

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  using aida in matlab programs: \[[http://www.slac.stanford.edu/grp/cd/soft/aida/aida_matlab.html

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web interface

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  AidaWeb: \[[https://confluence/display/ACCSOFT/AidaWeb+Help

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VII. FAQs

Q: How do I log onto the channel access network?
A: While shared accounts are used, the command is:
ssh fphysics@facet-srv01
If that hangs, then ssh into mcclogin first:
ssh mcclogin

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