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Trending machine status from a trafic light tower

Jan Lonij

I have several machines with a 'trafic light' indicating 3 statuses.

RED = STOP

ORANGE = IDLE

GREEN = RUNNING

I want a trend of these 3 situations over the last 24 hours (or 8 hours)

I can do this by using these variables for pens like:

The problem I have is that trending is only possible in 'Instant trend'

When using instant trend the charting begins when opening the page, NO history!
(See second pane in picture below.)

 

To overcome this I made ALARMS which can be trended and these are displayed correctly and with history.
(See pane 1, 3 and 4 in picture above)

Problem with this method is that my alarm page is displaying all these alarms


AL_201_RED, AL_302_RED etc etc.
Some have a description, some don't, this is due to my programming ;-)

Is there an other way to trend the status of the machines without using these ALARM trend with history?

If not can I filter-out, on the alarm page, these Alarms based on name or empty description field, so they are not visible anymore?

Thanks for your support.

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  • 0

    Hi  ,

    I'm curious if others in the community have a novel approach to solve this problem?

    So when you untick "Instant Trend" what happens? I would assume this gets data from the Trend Tag (also assume you have a Trend tag defined?). Is it not displaying in the correct format? While the Instant Trend does display with correct format, just no history?

    With regards to Active Alarm or Summary/SOE page, that is very easy to solve. Assign the alarms you have defined for this purpose to a unique alarm category like "AlmEvents" and within the definition of this alarm category, set "Show on Active" and "Show on Summary" to FALSE. This wll ensure these events don't appear on your active alarm page or Summary/SOE page.

    Let us know how you go.

    Kind regards

    Olivier

  • 0 in reply to Olivier

    Hi Oliver,

    Setting "Show on Active" and "Show on Summary" to FALSE did the trick for me.
    Now |I have a clean alarm page, without these 'alarms' visable.

    Thanks for your help.

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