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Experimental Physics and
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Two questions: Ernest, I gave a talk at the collaboration meeting last spring about our use of the alarm handler at Jefferson Lab. You can read the slides here: http://www-ssrl.slac.stanford.edu/lcls/epics/Talks/ThurAM/Bevins_Epics2005April_Alarms.ppt Basically, we run an instance of alh on a dedicated machine which makes the audible alarms in the control room and logs to CMLOG. Operators run local instances of alh to acknowledge alarms, get guidance for alarms, etc. We generate our config files automatically in perl and we have a Tcl/Tk based tool that allows for masking off alarms from portions of the machine that are not active using PV's hosted in a Proxy IOC. (The PIOC is a local development that uses the pcas to serve PVs that are created/deleted on demand for "sponsoring" clients.) There are various enhancements to Cdev and alh that we made to support this configuration, which I promised to release. That should happen Real Soon Now.... --Brian -- Brian S. Bevins, PE Computer Scientist / Mechanical Engineer Thomas Jefferson National Accelerator Facility "Progress, far from consisting in change, depends on retentiveness. Those who cannot remember the past are condemned to repeat it." -- George Santayana
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ANJ, 02 Sep 2010 |
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