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<== Date ==> <== Thread ==>

Subject: Re: Implementation of alarm handlers by EPICS users
From: Robert Soliday <soliday@aps.anl.gov>
To: tech-talk <tech-talk@aps.anl.gov>
Date: Fri, 12 Dec 2003 15:49:34 -0600
In addition to alh we also have an alarm logger to log changes in alarm status for PVs. The output file is in SDDS format and contains information such as time of occurrence, alarm designation, severity of the alarm, and row location of the previous alarm status change. We then have a Tcl/Tk GUI to review the alarm logs at our leisure.

--Bob Soliday

Munro Jr, John K. wrote:
Hi All,



I want to find out what kind of audible warnings from alarm handlers are being used in the EPICS community and how they have been implemented.



Efforts to implement the EPICS Alarm Handler from APS here at SNS have not been as straightforward as initially anticipated. In the case for some subsystems, the engineers are looking at alternative approaches that they consider to be more intuitive and easier to use. Maybe one solution should not be expected to fit all situations. Opinions about how alarms should be displayed, announced (audible warning systems), acknowledged, and logged cover a wide range of views. We are at a stage of implementation where we could benefit from the experiences of others.



A particular area of interest is the use of audible alarms. What is being used? How are they implemented?



Comments, suggestions, lessons learned, anecdotes, histories, conference papers, etc., in this area would be greatly appreciated.



Thanks,

John Munro

SNS Global Controls Group




References:
Implementation of alarm handlers by EPICS users Munro Jr, John K.

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