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h2. I. Overview
The FACET facility is controlled by a combination of the VMS-based SCP control system, and EPICS. EPICS controls for some systems are centered in the new experimental region in LI20, and include these subsystems: profile monitor, collimator/motion, bunch length monitor, wire scanner and event. Magnet, bpm and toroid subsystems in the new LI20 region are controlled by the SCP. A single EPICS controlled profile monitor will eventually reside in LI10.
All other FACET controls are SCP-based.
This document is a basic FACET control system physics development guide.
confluence test area:
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test
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test2
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h2. III. Logging into the FACET control system network
The FACET EPICS control system resides on its own MCC-based private network, parallel to and separate from the LCLS network. The FACET servers that will be used for matlab work are:
* facet-srv01
The FACET and LCLS directory structures have a parallel naming convention:
* *LCLS top-level directory:* /usr/local/lcls
* *FACET top-level directory:* /usr/local/facet
*To log into the FACET network from a linux terminal session*:
* Account setup:
** Your afs unix account must be added to the facet group. Contact Ken Brobeck (x2558).
** You will be logging into the facet network as the shared fphysics account. For personal matlab settings, Mike Zelazny (x3673) will set you up with an (_optional_) user-specific directory and environment (ENVS script file) under fphysics.
* Log into the mcclogin machine with your afs account:
{color:blue}ssh mcclogin{color}
* login
** From mcclogin, log into facet-srv01 as the fphysics account
{color:blue}ssh fphysics@facet-srv01{color}
** When prompted, enter your user number assigned by Mike (or 0 if you don't have one.)
** With Mike's setup, you are now in /home/fphysics/userid (e.g. /home/fphysics/fred)
*To log into the FACET network from an OPI in MCC:*
* Click the ..... icon on the desktop.
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h2. IIIII. FACET edm displays: facethome
facethome is the toplevel display for the FACET accelerator. It is similar to lclshome, a grid showing all areas and subsystems, with clickability into the various displays.
*To run facethome from a terminal session on the facet network (see above) enter*:
* enter
{color:blue}facethome{color}
at the command prompt
*To run facethome from a an MCC opi*:
* click the ... icon on the screen
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h2. IVIII. SCP
*To run a SCP from a terminal session window*:
* you will need a VMS account on MCC. To get one, please contact Ken Brobeck (x2558)
* from your afs account on mcclogin, log into mcc and run the scp:
{color:blue}ssh mcc{color}
{color:blue}scp xt userid (e.g. scp xt fred){color}
*To run a SCP from facethome*:
* click the "SCP..." button
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h2. VIV. Matlab
*{_}For a complete overview and detailed instructions please refer to the "MATLAB Programmer's Guide for FACET physicists", which can be found here:_*
*/usr/local/facet/tools/matlab/programming_guide_matlab.doc and .pdf*
Here are a few excerpts:
*Environment setup*
After you log onto a Linux machine using the fphysics account, you'll need to customize the environment for matlab. Once Mike Z. has set up your user directory under fphysics as described in II. above, add these commands to your /home/fphysics/userid/ENVS file, and they will be automatically invoked every time you log in. Note: All strings are case-sensitive.
* source /usr/local/facet/tools/script/ENVS_facet.bash
* export EPICS_CA_MAX_ARRAY_BYTES=40000000 (if you'll be using OTR image data)
* export DISPLAY=your_IP_address:0 (if you're logging in from Windows)
Note: your_IP_address can be found after running ipconfig on Windows.
*Starting matlab*
* If you want the full GUI development environment, type
{color:blue}matlab{color}
* If you want to run applications only and/or do some basic scripting (recommended), type
{color:blue}matlab \-nodesktop \-nosplash{color}
This starts the fully working command-line version that requires much less resources.
*Directories*
* *tested* matlab scripts that are shared can be found here:
/usr/local/facet/tools/matlab/toolbox
* matlab scripts developed by the FACET software engineering group are here:
/usr/local/facet/tools/matlab/src
*CVS*
All shared matlab scripts are stored in the version control system, CVS. LCLS and FACET matlab scripts share their CVS repository, so there are many LCLS-specific scripts to be found in the toolbox and src directories, alongside the FACET and so-called "accelerator-agnostic" versions. For much Moremore info insee the Programmer's GuidGuide.
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h2. V. BSA: beam synchronous data
h2.
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h2. VIIVI. AIDA
[http://www.slac.stanford.edu/grp/cd/soft/aida/]
h2. VIII. Useful links
| *CVS commands* | [http://www.cvsnt.org/wiki/CvsCommand]\\ |
| *CVS repository* | [http://www.slac.stanford.edu/cgi-wrap/cvsweb/matlab/toolbox/?cvsroot=LCLS]\\ |
| *AIDA web* | [https://seal.slac.stanford.edu/aidaweb]\\ ]| |
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