Alarms Page: Difference between revisions

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The midas documentation has moved. See [https://midas.triumf.ca/docs/develop/reference/reference/web_pages/#alarms-page Alarms page] in Built-in web pages and [https://midas.triumf.ca/docs/develop/features/monitoring_and_control/alarms/ Alarms: overview] for the new documentation about the Alarms web page.
* [[Midas_documentation|Midas Documentation]]
* [[Feature_listing|Feature Listing]]
* [[Application_listing|Application Listing]]
* [[Online_Database|Online Database]]
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= Links =
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* [[Mhttpd|mhttpd MIDAS web server]]
* [[Status Page]]
* [[Message Page]]
* [[Programs Page]]
* [[Alarms Page]]
* [[Alarm System]]
* [[/Alarms ODB tree]]
* [[MSCB Page]]
* [[History Page]]
* [[Custom Page]]
* [[Sequencer Page]]
* [[odbedit]]
</div>
 
= Purpose =
The purpose of the [[mhttpd]] Alarms page is to display information about the MIDAS [[Alarm System]], and to allow the user to reset individual alarms or all alarms.
 
 
= Access the Alarms page =
The Alarms Page is accessed from the [[Status Page]] (or the other Pages) by clicking on the menu-button
<span style="color: #444444; background-color: #CCCCCC; font-style:italic; font-size: 90; padding:0.25em;
padding-left: 0.5em;padding-right: 0.5em;border:1px solid #808080;border-radius: 5px;margin-bottom:1px;">Alarms</span>.
The top level ODB trees will be visible as key-links (i.e.links to a key) ([[#Example ODB Page|Figure 1]]).
 
 
;Note
:If "Alarms" button is not present on the Status Page, it may have been [[Status Page#page-switch-buttons|suppressed]].
 
 
 
= Features of the Alarms page =
Click to enlarge thumbnails.
[[File:alarms_page_untriggered.png|thumb|left|Figure 1: Alarms page example]]
[[File:alarms_disabled.png|thumb|right|Figure 2: Alarms page with Alarm system disabled]]
[[File:alarms_demo_odb.png|thumb|left|Figure 3: Demo ODB alarm subtree]]
[[File:alarms_caution_class.png|thumb|right|Figure 4: Caution class alarms subtree]]
 
Figure 1 shows an example of the Alarms Page where the [[Alarm System]] is enabled and no alarms are triggered. The page displays information from the
[[/Alarms ODB tree]].
At the top of the Alarms page are two buttons,
<span style="color: #444444; background-color: #CCCCCC; font-style:italic; font-size: 90; padding:0.25em;
padding-left: 0.5em;padding-right: 0.5em;border:1px solid #808080;border-radius: 5px;margin-bottom:1px;">Reset all alarms</span> and <span style="color: #444444; background-color: #CCCCCC; font-style:italic; font-size: 90; padding:0.25em;
padding-left: 0.5em;padding-right: 0.5em;border:1px solid #808080;border-radius: 5px;margin-bottom:1px;">Alarms on/off</span>. The latter button will disable/enable the Alarm System. If the Alarm system is disabled, it will appear as in Figure 2.
 
 
The Alarms Page is divided into four areas, one for each of the  [[/Alarms ODB tree#Alarm Type|alarm types]] :
;  [[Alarm System#Program Alarm|Program]]
; [[Alarm System#Periodic Alarm|Periodic]]
; [[Alarm System#Evaluated Alarm|Evaluated]]
; [[Alarm System#Internal Alarm|Internal]]
 
Clicking on one of the alarm-links on the left hand side of the page (under heading '''Alarm''') switches to the ODB Page displaying the contents of the [[/Alarms ODB tree#<Alarm-name> subtree|/Alarms/Alarms/<alarm-name> subtree]]. For example, Figure 2 shows the Demo ODB alarm subtree.
 
In Figure 1, under heading '''State''', the Demo ODB is shown as
<span style=" background-color: #f1c40f; border-radius: 5px; border: 1px solid #000000;">&nbsp;Disabled&nbsp;</span>
because the ODB key [[/Alarms ODB tree#Active|Active]] for that alarm is set to "n". Alarms with this key set to "y" are shown as
<span style=" background-color: #00e600; border-radius: 5px; border: 1px solid #000000;">&nbsp;&nbsp;OK&nbsp;&nbsp;</span>.
 
The class for each alarm is shown as a link under the '''Class''' heading. Clicking on one of the class-links switches to the ODB Page displaying the contents of the [[/Alarms ODB tree#<class-name> subtree|/Alarms/Alarms/<class-name> subtree]]. For example, Figure 4 shows the "Caution" class subtree.
 
 
The <b>Condition</b> reflects the contents of the ODB [[/Alarms ODB tree#Condition|Condition]] key for that alarm.
 
The '''Current value''' for Evaluated alarms displays the current value of the Condition. In the case of Alarm ''Demo ODB'', this is the current run number.
 
 
[[File:alarms_page.png|thumb|left|Figure 5: Alarms page example with an alarm triggered]]
 
 
 
 
Figure 5 shows an example of the Alarms page with the alarm ''pol_fevme'' is
<span style="color: white; background-color: #c0392b; border-radius: 5px; border: 1px solid #000000;">&nbsp;Triggered&nbsp;</span>. This causes an alarm banner to appear on the Status Page (see [[Status Page#Alarm Banner|Alarm Banner]]).
 
 
 
 
 
<div style="clear: both"></div>
 
[[Category:Alarms]]
[[Category:mhttpd]]

Latest revision as of 22:00, 30 October 2026

The midas documentation has moved. See Alarms page in Built-in web pages and Alarms: overview for the new documentation about the Alarms web page.

Retrieved from "https://daq00.triumf.ca/MidasWiki/index.php?title=Alarms_Page&oldid=3671"