Browsing historical data on a remote tag provider

Ignition
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1

Wondering if I'm just completely missing something here..

I'm having trouble setting up access to the tag history from our front end server.

Front end:

  • Platform

  • Alarm Notification

  • OPCUA

  • Perspective

  • Reporting

  • Twilio

  • Webdev

Back end:

  • Platform

  • Tag Historian

I have them both connected via the GAN, service security on the back end allows the reading of tags.

I have a remote tag provider set up on my front end, connecting to the single tag provider on my back end server.

I have the remote tag provider set up to access tag history via 'database' mode, with the applicable configuration entered (below).

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However, I can not browse any of the historical tags, they do not appear in the power chart, and I can not subscribe to them with a manually constructed historical path.

8.1-rc2 Cannot pull tag history over gateway network - Ignition Early Access - Inductive Automation Forum

The above forum post would lead me to believe that I need to have the tag historian module installed and licensed on both gateways? Otherwise is there anyone here that can help with this please?

2

I'm pretty sure you need the historian module on both front and back ends.

2 Likes
3

IIRC get with your IA Sales rep and ask about the Historian Read-Only module for your front end. Then your front end can read the historians on the backend but not put data into the historian.

4 Likes
4

The tag history portion of this doc might be helpful...

1 Like
5

Thanks, it turns our that you're all right.

There's a 'free' license for a read only tag historian module for front end servers that I can get from IA and will do.

The configuration on the tag provider for historical data access appears to be for when accessing the historical data via a real time tag path, it appears that it resolves the ignition hostname that inserted the data via this. This is useful for me so I don't have to store that config anywhere.

Thanks gents.