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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Re: alarm/severity |
| From: | Ralph Lange <[email protected]> |
| To: | EPICS Core Talk <[email protected]> |
| Date: | Thu, 20 Oct 2005 17:52:29 +0200 |
Your last mentioned subscription won't be enough, as e.g. the Alarm Hander is also interested in the value, but only wants updates when the severity changes.
The trigger/events and channels/fields/views aspects of a connection are orthogonal.
Ralph Kay-Uwe Kasemir wrote:
Hi: While still wondering if properties of a channel or fields of a record need to be configured as "commands", "static", ... What about the status/severity and alarm subscriptions? An alarm handler is interested in updates whenever the severity of a channel changes. Is a separate 'alarm' subscription as it's now available in CA V3 required, or would a 'change' subscription to the 'status' and 'severity' properties of a channel cover what an alarm handler needs? Thanks, -Kay