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

Subject: Re: EPICS: Selecting a Text Error Message
From: Ralph Lange <[email protected]>
To: David Dudley <[email protected]>
Cc: [email protected]
Date: Thu, 20 Mar 2008 07:37:14 +0800
Hello David,

I see two approaches for the string lookup:
One is to have 235 stringouts with the messages sitting there, with their OUT links all pointing to the same stringin that holds the current error message. A bunch of CALC records would do the divisions/modulo operations to fire the matching stringout. For 235, this database gets a bit ugly and large...
The other one is to use a genSub for the conversion - within your C code you can do anything you want, including a lookup table.


For the email alert it sounds like the Alarm Handler would be the tool of choice. It can be configured to run user written scripts on alarm severity change - these scripts can do anything, including sending emails or cell phone text messages. I don't know if your environment allows you to run an ALH for this particular IOC, though. I'm not sure if anyone ever had the IOC itself send out email.

Ralph


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

Replies:
Re: EPICS: Selecting a Text Error Message Maren Purves
Re: EPICS: Selecting a Text Error Message Emmanuel Mayssat
References:
EPICS: Selecting a Text Error Message David Dudley

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