Questions & Answers Category

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.…

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.…

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.…

How to export RAW data from Canary in Chart Trend

I am attempting to export the "RAW" data from Axiom Canary Labs using a new Chart Trend and a single data point for a 24-hour period. However, the "Edit Trends" dialog/menu will not allow me to set…

Historian Thread Count Increase and Tag Differences

What are the common causes for an increase in the Historian Thread Count? Understanding these factors will help us manage system performance effectively.…

Exporting Large Volumes of Raw Historian Data Efficiently via Canary API

I'm working on exporting a large amount of raw historian data using the Canary API (/getData2) over a long time range. Due to the tag count limitations per API call,…

Canary to other historians?

Hi Canarians, Does canary expose an OPC /OPC UA/ MQTT Publisher to which we can connect from an external interface and write to our non Canary historian? I see the data collectors,…

Remote Historian/Views/Architecture Options

I have multiple historians and a remote Axiom server. Is it better for Axiom to be pointed at a local Views instance which is connected to the remote historians,…

Ignition - Backfill data from SQL database

We are hoping to use Canary historian for our existing Ignition system but are concerned about access to our existing data. Does anyone know if there's an accepted way to backfill existing data from…

• Answered

Wrong STRING and REAL format with Canary Logger

Hello, We are facing a problem with the format of the Tags with OPC DA Canary Logger 24.2. The tags are displayed in a different way in Logger, Historian and Views, for real time and historical data.…

Does "Logging to Redundant Canary Historians" require 2 licences ?

Hello, I was wondering if the following architecture require 2 licences or if this functionality is implemented with just one? My main concern is securing my Canary Historian data in multiple…

Historian Raw Float Precision

Hello! We are trying to understand why we are observing a lack of precision in our raw float values. Our data source is Ignition with Cirrus Link MQTT. In most cases,…

• Answered

Possibly to convert/change data types?

We've implemented our pilot site with Canary using MQTT Collector and noticed that many tags are classified as I8 when they could be I1 or I2. These data types are defined in our Ignition system.…

• Answered

A tag that's value is the year data started

This is related to not being able to manually create tags. For filtering reasons in Axiom, I want to be able to have a tag that's value is the year the tags were added (i.e.…

Dataset storage questions

I'm trying to understand how Canary 'knows' what tags it has. As far as I can tell, if a collector sends data for a tag name then that tag is created in the relevant dataset file for that day,…

• Answered

Continuously repeating "Validating File"

In our Messages log I'm seeing repeated instances of historian files trying to be validated, then terminated, then validated over and over. After it churns for a while,…

• Answered

Recurring hdb Reference Count Errors

I get recurring Reference Count warnings on hdb2 files (version 23.1). Is this a cause for concern?

Changing Tag (from Ignition project) name before entering Canary Historian

We've got existing systems that did not use historian database capabilities and I am introducing the concept to the business units. I understand the concept of data historians,…

Issues with Aggregation & Resolution

We're having some issues with null-handling and data aggregation. We automatically aggregate the data to control the number of samples. For example, we try to ensure that we are asking for around…

Data Compression

Hi Everyone, I have some data showing that during the night, the hourly scheduled calculations give me a result of zero. When I check the data the next day,…

Moving data between historians

Hello community! I'm exploring the Redundant Logging architecture, where a data collector+sender pair will move data to a primary and redundant historian servers.…

• Answered

Ignition Tag Latency in Canary Historian

I'm currently having issues with canary reading the correct tag values. I previously had this working at one point in time before all my servers got reset.…

Inconsistent Vector Size When Writing Historical Data

Hey Guys, I'm fairly new to Canary, and I'm struggling to understand how Vectors work. The only documentation I found says the Vector size should be based on data type.…