Skip to Content
Last modified by sndueste on 2025-09-08 15:36
From version 11.1
edited by sndueste
on 2019-10-24 09:30
Change comment: There is no comment for this version
To version 18.1
edited by sndueste
on 2020-03-09 15:38
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -98,7 +98,6 @@
98 98  
99 99  * The FLASH DAQ system records the data in binary " {{code language="none"}}.raw{{/code}} " files.
100 100  ** [[reading the data via Matlab >>doc:FLASHUSER.Data Acquisition and controls.Data Access at FLASH (DAQ, gpfs,\.\.\.).Offline data analysis (DAQ).For experts\: many ways to get Data from the DAQ.How to Access the DAQ Using Matlab.WebHome]] works not for all data types equally well and needs precise knowledge of the desired Parameters (useful to have a quick look / preliminary analysis on few parameters).
101 -** Examples how to read from {{code language="none"}}.raw{{/code}} files can also be found in [[the user code collection>>doc:FLASH.Collection of user codes]]
102 102  ** Note that the raw data is only accessible from certain computers within the DESY network and thus not very handy for offline analysis later on ...
103 103  
104 104  \\
... ... @@ -116,7 +116,7 @@
116 116  * /asap3/flash/gpfs/ //beamline used// / //year// /data/ //Beamtime application number// /raw/hdf/ (the //Beamtime application number// can be fund in the pdf schedule sent around by Rolf ...)
117 117  * as example: {{code language="none"}}/asap3/flash/gpfs/bl2/2017/data/11003163/raw/hdf/{{/code}}
118 118  
119 -More details and links can be found in the [[doc:FLASHUSER.User overview]].
118 +More details and links can be found in the [[doc:FLASHUSER.Data Acquisition and controls.DAQ and controls overview.WebHome]].
120 120  
121 121  \\
122 122  
... ... @@ -237,11 +237,23 @@
237 237  Few things to consider (in case of doubt talk to the expert (Erland ...)):
238 238  
239 239  * 1000 MB: This is the standard setting which is best for archiving (few large files are preferred). However mainly for images that are saved with less than 10 Hz the HDF5 converter has problems with the large files. And for low data rates it may take upto half an hour to fill one 1GB file. Then smaller ones are also preferable.
239 +* 350 MB: Often a good compromise ...
240 +* 100 MB: It is not preferred to have many "small" files for storing the data. For very small data rates this is an option to not wait too long till the next file is created.
240 240  
241 -Basically it is
242 +To choose the desired filesize one has to choose a run mode configuration in the RunControlGUI
242 242  
244 +[[~[~[image:attach:image2020-1-17_13-39-38.png~|~|height="400"~]~]>>attach:image2020-1-17_13-39-38.png]]
245 +
246 +This will however the clear the definition of selected subsystems and one has to reload the whitelist of the experiment again.
247 +
243 243  \\
244 244  
250 +\\
251 +
252 +\\
253 +
254 +\\
255 +
245 245  === Assigning the DAQ to the beamline in jddd ===
246 246  
247 247  To assign which DAQ is used at what beamline one has to use the dropdown menu in the {{code language="none"}}parameter monitor{{/code}}. In each Beamline overview tab (BL1,2,3) there is a button (upper right) that starts the {{code language="none"}}parameter monitor{{/code}} panel. In the upper middle is a DAQ field in which the appropriate DAQ can be assigned to the Beamline.
... ... @@ -314,12 +314,12 @@
314 314  ** 3. In very hard and severe cases there is the ultimate restart button: "re-start DAQ (no RCSHM)"
315 315  
316 316  
317 -\\*Here in more detail:*
328 +\\//**Here in more detail:**//
318 318  
319 319  \\
320 320  
321 321  * if the DAQ gets stuck in the starting or stopping procedure one can try to initialize the DAQ or in the worst case restart it.
322 -** to be able to restart the DAQ one has to run jddd on the {{code language="none"}}flashlxuser1{{/code}} or {{code language="none"}}flashlxuser2{{/code}} (up to now (Aug 2018) the restat on our consoles (cons0...12) is NOT possible yet [[image:url:http://hasfweb.desy.de/pub/TWiki/SmiliesPlugin/frown.gif||alt="frown"]]) : log in at one of these machines with your beamline account (e.g. bl1user or fl24user). Start jddd with the {{code language="none"}}jFLASH{{/code}} command. Click on "Photons" -> Experimental Hall "Photons main panel"
333 +** **to be able to restart the DAQ one has to run jddd on the {{code language="none"}}flashlxuser1{{/code}} or {{code language="none"}}flashlxuser2{{/code}} (up to now ( 2020) the restat on our consoles (cons0...12) is NOT possible yet [[image:url:http://hasfweb.desy.de/pub/TWiki/SmiliesPlugin/frown.gif||alt="frown"]]) : log in at one of these machines with your beamline account (e.g. bl1user or fl24user). Start jddd with the {{code language="none"}}flash{{/code}} command. Click on "Photons" -> Experimental Hall "Photons main panel"**
323 323  ** The DAQ "expert" panel can be reached from the User DAQ control panel.
324 324  [[~[~[image:url:http://hasfweb.desy.de/pub/Setup/DAQjddd/DAQ_expert.jpg~|~|alt="DAQ_expert.jpg" width="400" height="350"~]~]>>attach:DAQ_expert.jpg]]
325 325  
... ... @@ -353,9 +353,9 @@
353 353  \\
354 354  
355 355  *
356 -** one has to go to the "Run Modes" tab and select the run mode {{code language="none"}}FLASH1_EXP{{/code}} by clicking on it !
357 -[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/DAQjddd/runmode_set.jpg~|~|alt="runmode_set.jpg" width="400" height="400"~]~]>>attach:runmode_set.jpg]]
358 -** then one has to go back to the {{code language="none"}}Subsystems{{/code}} . now all subsystems are included.
367 +** one has to go to the "Run Modes" tab and select the run mode {{code language="none"}}FLASH1_EXP{{/code}} by clicking on it and choose the desired file size (stored settings)
368 +[[image:url:http://confluence.desy.de/plugins/servlet/confluence/placeholder/unknown-attachment?locale=en_US&version=2]]
369 +** then one has to go back to the {{code language="none"}}Subsystems{{/code}} . initially all subsystems are included.
359 359  ** finally you have to select your White list and start a run ...
360 360  
361 361  \\
... ... @@ -372,9 +372,15 @@
372 372  
373 373  [[Some more details for experts ...>>doc:FLASH.Collection of Detailsof the DAQ from various times \.\.\. not for public use]]
374 374  
386 +=== Re-read the data base ===
387 +
388 +If there are new Properties included by Vladimir et al one has to reread the data base.
389 +
390 +This can be done easiest by going to the run modes and choose a different "stored setting" (changing e.g. from filesize 100 MB to 350 MB) and going back to subsystems. At this point the new database entries are read in. then one can do the same backwards to switch back to the initial file size. Doing this the configured list of subsystems is lost and one has to reload the whitelist and start a run to get the loaded whitelist in the configuration.
391 +
375 375  \\
376 376  
377 -=== Re-read the data base ===
394 +OR one can do the hard way:
378 378  
379 379  On flashlxuser1 or 2 start RCGUIFL1USER1 or appropriate to the DAQ you want to reconfigure. Select the tab "Run Modes". To then reload or re-init the run control database you need the expert menu entry:
380 380