https://clonwiki0.jlab.org/wiki/api.php?action=feedcontributions&feedformat=atom&user=129.57.80.211CLONWiki - User contributions [en]2026-05-07T15:22:46ZUser contributionsMediaWiki 1.42.1https://clonwiki0.jlab.org/wiki/index.php?title=May_21,_2008_online_meeting_minutes&diff=3375May 21, 2008 online meeting minutes2008-05-21T14:24:06Z<p>129.57.80.211: </p>
<hr />
<div>present: Sergey Boyarinov, Sergey Pozdnyakov<br />
<br />
During last month several hardware failures were observed:<br />
- PMC broke in tage3 and sc2 - replaced, will be tested in test setup<br />
- 4 timing discriminators 2313 in CC broke after accidental power recycle - replaced; removed boards were tested in test setup<br />
and appeares to be fine; more tests will be performed<br />
- wrong signal polarity was discovered on output from new trigger - swapped cable<br />
installed (fortunately data were fine, but it maybe desasterous error !)<br />
- power supply broke in croctest10 - replaced, sent to repair to WIENER<br />
<br />
Also old NIM bin send to repair to ORTEC<br />
<br />
<br />
Software problems:<br />
- ROCs crashes, EB have to be restarted every time after ROC crashed; it is still unclear why ROCs are crashing<br />
occasionally, it can be different reasons; internal monitoring was developed to debug several software loops<br />
inside ROC and PMC, it will be activated in an attempt to get more detailed information; EB should be able<br />
to recover on 'reset' transition;<br />
<br />
- preshower setup problem: slow download, prestart etc; change CPU did not help. jlab IP address did not help, will study<br />
<br />
- low network speed in pmc880 and pmc280, while 2800 is good - another device; will study at summer<br />
- DB still to be finished: polar area and tagger area (nim-fastbus) remains</div>129.57.80.211https://clonwiki0.jlab.org/wiki/index.php?title=May_21,_2008_online_meeting_minutes&diff=3374May 21, 2008 online meeting minutes2008-05-21T14:16:07Z<p>129.57.80.211: </p>
<hr />
<div>present: Sergey Boyarinov, Sergey Pozdnyakov<br />
<br />
During last month several hardware failures were observed:<br />
- PMC broke in tage3 and sc2 - replaced, will be tested in test setup<br />
- 4 timing discriminators 2313 in CC broke after accidental power recycle - replaced; removed boards were tested in test setup<br />
and appeares to be fine; more tests will be performed<br />
- wrong signal polarity was discovered on output from new trigger - swapped cable<br />
installed (fortunately data were fine, but it maybe desasterous error !)<br />
- power supply broke in croctest10 - replaced, sent to repair to WIENER<br />
<br />
Also old NIM bin send to repair to ORTEC<br />
<br />
<br />
Software problems:<br />
- ROCs crashes, EB have to be restarted every time after ROC crashed; it is still unclear why ROCs are crashing<br />
occasionally, it can be different reasons; internal monitoring was developed to debug several software loops<br />
inside ROC and PMC, it will be activated in an attempt to get more detailed information; EB should be able<br />
to recover on 'reset' transition;<br />
<br />
- preshower setup problem: slow download, prestart etc; change CPU did not help. jlab IP address did not help, will study<br />
<br />
- low network speed in pmc880 and pmc280, while 2800 is good - another device; will study at summer</div>129.57.80.211https://clonwiki0.jlab.org/wiki/index.php?title=May_21,_2008_online_meeting_minutes&diff=3373May 21, 2008 online meeting minutes2008-05-21T13:58:05Z<p>129.57.80.211: </p>
<hr />
<div>present: Sergey Boyarinov<br />
<br />
During last month several hardware failures were observed:<br />
- PMC broke in tage3 and sc2 - replaced <br />
- 4 timing discriminators 2313 in CC broke after accidental power recycle - replaced<br />
- wrong signal polarity was discovered on output from new trigger - swapped cable<br />
installed (fortunately data were fine, but it maybe desasterous error !)<br />
- power supply broke in croctest10 - replaced, sent to repair to WIENER<br />
<br />
Also old NIM bin send to repair to ORTEC<br />
<br />
<br />
Software problems:<br />
- ROCs crashes, EB recover<br />
- preshower setup problem</div>129.57.80.211https://clonwiki0.jlab.org/wiki/index.php?title=May_21,_2008_online_meeting_minutes&diff=3372May 21, 2008 online meeting minutes2008-05-21T13:56:09Z<p>129.57.80.211: </p>
<hr />
<div>present: Sergey Boyarinov<br />
<br />
During last month several hardware failures were observed:<br />
- PMC broke in tage3 and sc2 - replaced<br />
- 4 timing discriminators 2313 in CC broke after accidental power recycle - replaced<br />
- wrong signal polarity was discovered on output from new trigger - swapped cable<br />
installed (fortunately data were fine, but it maybe desasterous error !)<br />
- power supply broke in croctest10 - replaced, sent to repair to WIENER<br />
<br />
Also old NIM bin send to repair to ORTEC<br />
<br />
<br />
Software problems:<br />
- ROCs crashes, EB recover<br />
- preshower setup problem</div>129.57.80.211https://clonwiki0.jlab.org/wiki/index.php?title=CLON_meeting_May_21,_2008&diff=3371CLON meeting May 21, 20082008-05-21T13:50:57Z<p>129.57.80.211: </p>
<hr />
<div>Clas On-line Meeting, Wednesday, May 21 at 10am in Room A110<br />
------------------------------------------------------------------<br />
<br />
1. g12 run status<br />
<br />
* recent repaires<br />
<br />
* remaining problems and possible improvements</div>129.57.80.211https://clonwiki0.jlab.org/wiki/index.php?title=CLON_Group_Meetings&diff=3370CLON Group Meetings2008-05-21T13:49:23Z<p>129.57.80.211: </p>
<hr />
<div>[[CLON meeting December 13, 2006]] >>>>> [[December 13, 2006 online meeting minutes]]<br />
<br />
==== 2007<br />
<br />
[[CLON meeting September 5, 2007]] >>>>> [[September 5, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting September 12, 2007]] >>>>> [[September 12, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting September 19, 2007]] >>>>> [[September 19, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting September 26, 2007]] >>>>> [[September 26, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting October 3, 2007]] >>>>> [[October 3, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting October 10, 2007]] >>>>> [[October 10, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting October 17, 2007]] >>>>> [[October 17, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting October 24, 2007]] >>>>> [[October 24, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting October 31, 2007]] >>>>> [[October 31, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting November 7, 2007]] >>>>> [[November 7, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting November 14, 2007]] >>>>> [[November 14, 2007 online meeting minutes]]<br />
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[[CLON meeting November 28, 2007]] >>>>> [[November 28, 2007 online meeting minutes]]<br />
<br />
[[CLON meeting December 12, 2007]] >>>>> [[December 12, 2007 online meeting minutes]]<br />
<br />
==== 2008<br />
<br />
[[CLON meeting January 16, 2008]] >>>>> [[January 16, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting January 23, 2008]] >>>>> [[January 23, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting January 30, 2008]] >>>>> [[January 30, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting February 13, 2008]] >>>>> [[February 13, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting March 5, 2008]] >>>>> [[March 5, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting March 12, 2008]] >>>>> [[March 12, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting March 26, 2008]] >>>>> [[March 26, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting April 16, 2008]] >>>>> [[April 16, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting April 23, 2008]] >>>>> [[April 23, 2008 online meeting minutes]]<br />
<br />
[[CLON meeting May 21, 2008]] >>>>> [[May 21, 2008 online meeting minutes]]</div>129.57.80.211