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handover:hob006

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handover:hob006 [2016/10/21 22:02]
Jim Lovell
handover:hob006 [2016/10/22 07:16] (current)
Jim Lovell
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   * Still getting delay difference changing due to GPIB device timeout.   * Still getting delay difference changing due to GPIB device timeout.
     * Update, as of 295-2052 after repeated "​counter"​ commands it has fixed itself. Monitoring. (Lucas).     * Update, as of 295-2052 after repeated "​counter"​ commands it has fixed itself. Monitoring. (Lucas).
-  * I think there is a hydraulics fault. The Live page keeps saying to and keep getting command '​previous source in shced not reached before new source was commanded'​ (Lucas).+  * I think there is a hydraulics fault. The Live page keeps saying to and keep getting command '​previous source in sched not reached before new source was commanded'​ (Lucas). 
 +    * Hydraulics fault was caused by circuit break as the motor wasn't covered and water got in. Collaborative effort of Eric and Brett solved the problem. (Lucas). 
 +  * GPIB device continues to time-out, however delay difference is still stable and < 0.3. Counters are being monitored on rack camera to make sure that severe drifts don't occur whilst Eric investigates. (Lucas). 
 +  * 23:50 UT - schedule resumed, lost about 500 GB. First scan  295-2351. GPIB still a problem though, reporting massive delay differences every scan. Clkoff values looks reasonable. (Ellen) 
 +  * 01:04 UT - Eric has reset the GPIB device and it is still a problem. (Ellen) 
 +  * 01:11 UT - Tsys values all overflowing again, restarted CAL again and everything is fine. The CAL has dropped out like this halfway through an experiment before. (Ellen) 
 +  * 01:22 UT - Jamie has turned the GPIB off so that we are no longer measuring a delay difference because it's wrong anyway. Keeping an eye on dbbc=pps_delay instead. (Ellen) 
 +  * 02:17 UT - CAL needed resetting again. And several other times. (Ellen) 
 +  * 07:15 UT - CAL reset again. (Ross)
  
  
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   * Experiment Started OK (Lucas).   * Experiment Started OK (Lucas).
-  * Schedule halted whilst 26m was down. All scans missed **between** 295-1911 and 295-2016 (Lucas).+  * Schedule halted whilst 26m was down. All scans missed **between** 295-1911 and 295-2016 ​- ~125 GB missing ​(Lucas).
  
  
/home/www/auscope/opswiki/data/attic/handover/hob006.1477087358.txt.gz · Last modified: 2016/10/21 22:02 by Jim Lovell