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OPC/Custom Functions for Calc Server Error
When I create an application and use the DeltaTotalCount aggregate with the end time in the future (based on the duration and start time) The calculation seems to truncate to Now and works fine.…
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Duplicates in View Rules Needs Underlying Source Tag Info
The "Duplicates" view in Virtual View > Edit > Rule Details is a bit limited right now because it only shows the preceding Virtual View name, not the source input tag that’s causing the duplicate.…
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Control auto width / height documentation
I just accidentally discovered that entering a height or width of zero will extend the control to the screen extent, starting from the x/y coordinates. This is something I wish I knew months ago.…
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Identity -> Axiom Security new user group missing
After creating a new Canary user group, you must close and re-open the Identity tile for the new group to show up when editing Axiom file security. I tried restarting the Identity and Axiom services…
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Excel Add-in Feature Parity with Views API
Right now, the list of functions available in the Excel Add-in is limited compared to the Views API. The most important functions would be the Asset Methods,…
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How to Remove OPC Collector Sessions
Hi I'm new to the Canary sphere, and am trying to figure out how to remove Sessions that are no longer in use from the OPC Collector tile, and in the OPC Collector window.…
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Backfill To vs Remove Old Data
How are Backfill To and Remove Old Data related? Below are the definitions from the documentation. So Backfill To will be leveraged anytime the calc is saved or the calc service is started up?…
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Donut Gauge Control (version 25)
Properties *Name - a unique name used to reference the control in script AggregateInterval - the amount of time within each interval over which the data is processed using an AggregateKind (e.g.…
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Axiom trend zooming
It can be cumbersome to switch between cursor/zoom/annotate modes inside trends. I'm proposing some shortcuts: 1) Hold the shift key in cursor mode to zoom 2) Drag in cursor mode to measure a delta…
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Intermittent gRPC Ingestion Failures Between Store & Forward and Historian
We are experiencing intermittent issues between two Store & Forward (S&F) nodes and our Canary Historian. The S&F services intermittently fail to start or maintain their gRPC connections to the…





