Questions & Answers Category

Axiom list box IsMultiSelectEnabled

Hello, I'm using a list box to configure a grid template filter. When IsMultiSelectEnabled = false the item boxes change from a checkbox to a radio button, implying one option must always be selected.…

Repeated "View not found" errors logged

Hello... I'm seeing clusters of repeated errors logged in Messages saying "View not found" and referencing two other server names (not the local Historian's name).…

Event Hash and ID

We've been looking at pulling Events via the API. Here is a sample response from our system. We noticed there is an ID and a Hash. I don't see any documentation on what those represent.…

AxiomCore2 EventManager+CacheableBatchEventsRequest was not present in the dictionary

We keep receiving the following error when navigating to any tab in this particular application. first two tabs are basic trends, third tab is an events table that seems to be populating fine.…

Events Table Control - manually format properties

Hi all, using the events table control (v25.3) I would like to manually define the property's format, similar to the question by James Wise. I couldn't find any documentation on formatting the values…

Calcs string comparison like

I have a use case where I need to start an event when a flare pilot goes out. For whatever unknown reason, statuses are sent to us in string. And they're not uniform.…

Axiom Extrapolation?

We have a scenario where a tag may only have a single timestamp with value until membranes are replaced in the future. We want to see this data point as an extrapolated value from the entry point to…

OPCUA Collector - Unhandled error BadOutOfMemory during Publish

We've encountered this error a couple times now and are not sure how to continue debugging to find the root cause. We've been able to resolve by just restarting the service/the host machine,…

Canary.Axiom.Session eating CPU Usage% - What is this Service?

We have an instance where there is a math added to some charts (I've asked that they move the math to the calculations module and pull that calculated data) But while troubleshooting this I went to…

Should IsQualityGood propagate the Quality of the tag?

We have a use case where we have two flow meters that we want to sum up. If one of them is Bad quality from SCADA, we want Calcs to treat it as zero. We did If(IsQualityGood('tag1'),'tag1',…

Axiom Chart - Break in Data isn't reflected in Chart Data

I have a situation where we had a power outage for about 3.5 hours and when looking at the chart data, the unchanged data is what is shown in the charts during this power outage.…

Recommendation on Canary tag names for multiple purposes views

Hello Canarians, I've been trying to come up with a good way to manage Canary tag names that can manage multiple views that we would need to build. We need to satisfy at least three different…

"All ReadOnly" Folder is missing

I'm getting errors on the "All ReadOnly" folder not being present. Looking in to it, it doesn't look like it exists. But when I login to Axiom I see the "Read Only" Folder there as a path (granted I…

• Answered

How to get Canary Version, and System HDD and other info for Axiom Display

Hi There, I'm creating an Axion dashbaord for system information and I found the following Axiom Showcase: https://helpcenter.canarylabs.com/t/h7h7g0k/canary-system-health-and-statistics I'm trying…

• Answered

Can Collectors be Upgrades before Historian?

We have a rather large system with 2 historians and about a dozen collector machines all running on 23.2.1. We're looking at upgraded to the latest version. Do we have to upgrade Historians to v25.…

Certificates for the ODBC Service

Hello, I'm trying to setup the ODBC Client to retrieve data from Canary Historian via SQL queries. So far the ODBC has been correctly setup (in the same server as the Canary Historian where I keep…

• Answered

Handling Async or Out-of-Order Data in Canary SQL Collector and MQTT

Hello, I am using Canary with a SQL Server as a data source, and I have tags that sometimes come in asynchronously or out of time sequence. This happens mostly because older data arrives late due to…

Axiom error message

Is there information available for this error message? I do not see anything that looks related in the message log.

Admin Client Preferences Lost on Upgrades

Hi, I have a minor request: Every time I upgrade my Admin Client on my PC (admin client only, no services installed), I lose all preferences. Persist last connection and the "speed dial" are the ones…

Canary Clients to Identity

When a user logs into Axiom (via browser), does the Axiom Core service authenticate directly with the Identity Service (port 55351 gRPC), or does it rely on the Views Service as an intermediary to…

How to configure Axiom Canary Labs to export in ISO Time Format?

We are using Axiom Canary Labs at several local sites around the US. Each time team members share CSV files we struggle which time zone this was exported in.…

Axiom Display Abbreviated Day of the Week

Good day folks! Is there a way to display the date, in a value box, in the following format {Time:MM/dd} with the day of the week like Sun, Mon, Tues, etc.? Hoping to get a display like 10/31/Fri etc.…

• Answered

Stats on tag usage

I had a customer ask if there was a way to report on the most used tags. I poked around Admin and couldn't find anything. I know Historian shows you a count of the number of tags being read,…

How to configure Dead Band Setting in Axiom Canary Labs

The current configuration is a local OPC-UA server that has two connections: (1) Axiom Canary Labs, local historian, & (2) AWS OPC-UA connection, cloud historian.…

Highly Available Axiom

Has anyone attempted to run Axiom HA. The typical scenario would be 2 web apps behind a network load balancer and talked to a single database as the backend.…