Questions & Answers Category

Read API Continuation

Can someone please explain how to use the continuation token returned by calls to /getTagData when using the read API? The docs (Canary Labs | Views Web API Documentation) don't include a lot of…

Efficient querying for calculated interval data

We have a calculation writing 11 tags every 5 minutes to it's own dataset for our BI team. Since the historian is write-by-exception only, when querying this 5m data,…

• Answered

Scaling on Virtual View

Hi all- I currently have some tags I am historizing that have a different scale associated with them as I store (10x / 100x / 500x). I am currently using virtual views and I am looking for a way to…

API Issue

I'm using the Views REST/HTTP API and am getting an odd difference in timezone behaviour when requesting historical data. If I send the following request...…

Get Tag Data Given a list or array?

Hi all, I'm currently working on a project that involves retrieving specific tag data from the historian. I have a list or array of timestamps for a particular tag,…

Obsolete API endpoint feature

I'm currently using canary with ignition and have found the process of removing tags from canary inconvenient. The current canary ignition module does not have any ability to remove a tag from canary…

Canary Lab historian to any other DB connectivity

Hi all, I'm trying to read the Tags Historian DB in the canary labs to Azure block storage. Is that possible to connect the system? kindly please let me know the possibilities.

Browsing tags for getTagData

Hi everyone. On API's docs, in the getTagData parameter "tags", says: "Tags may be passed in directly or thru browsing by supplying the path, deep and search parameters" How can I supply the browsing…

Wonderware (AVEVA) historian to Canary? Options?

I've been tasked with collecting Wonderware Galaxy Objects' process values into Canary via a Wonderware/AVEVA historian data source. I know the AVEVA historian has a SQL interface,…