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<== Date ==> <== Thread ==>
Subject: Re: EPICS: Selecting a Text Error Message
From: Bill Nolan <[email protected]>
To: David Dudley <[email protected]>
Cc: [email protected]
Date: Thu, 20 Mar 2008 09:45:00 -0500
I have used a MBBI in order to present a string error to operators, while still retaining the numeric error for the control system.
But of course that approach is limited to 16 errors, though you could combine a set of 16 MBBIs through a Select record and a string out; or you could code a 16bit MBBI record, which has the advantage of using all the standard supports, and being an extension of an existing and stable bit of code. For that matter a 16bit MBBI would be generally useful, I may look at writing that if I get time.
--Bill

Bill Nolan
Chemical Genetics Screening Core
Washington University Medical School, Department of Biochemistry
4566 Scott Ave. Mail Stop 8231
St. Louis, Mo 63110
1.314.362.4445 Fax 1.314.362.7183
http://htc.wustl.edu



David Dudley wrote: 
At a remote site, I have a backup generator that I am monitoring through
an EPICS IOC.  When the generator faults offline, it sends a numeric
fault to the IOC of what the particular error is.

I want to display a text error message instead of the fault number on
my edm display. The generator generates 1 of 235 errors. How do I
convert the error number into a text message, and return it through a ca
link? The error number I can easily return, but is there a way to build
a 'lookup table' in EPICS? 

Also, is there a way to have the IOC send out an email alert when the
system faults?  The site is around 50 miles from my office, but only
around 5 miles from our nearest service person.  I would rather have the
system email the service person with errors like "Unit Overheat", or
"Unit Maintenance Preset" or other errors, rather than me have to look
up the error code and then figure out who to notify.

David
References:
EPICS: Selecting a Text Error Message David Dudley
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