# PowerChart with Canary historian

**URL:** <https://forum.inductiveautomation.com/t/powerchart-with-canary-historian/80247>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [October 10, 2023, 5:36am UTC](https://forum.inductiveautomation.com/t/powerchart-with-canary-historian/80247 "2023-10-10T05:36:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Adam\_Wall](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Adam\_Wall](https://forum.inductiveautomation.com/u/Adam_Wall)\
**Post date:** [October 10, 2023, 5:36am UTC](https://forum.inductiveautomation.com/t/powerchart-with-canary-historian/80247/1 "2023-10-10T05:36:39Z")

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Hi Everyone-

I currently am historizing data via Canary. When I try to plot multiple lines on a powerchart. The lines do not show up and the following error is presented in the logs...

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/e/2e547b7637f44ef1611464ccfe53669bce92e15f.png)

It appears to be an ignition error so maybe it is something someone has seen before?

Thanks!

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<div class="post-metadata">

**Author:** ![deon.korb](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@deon.korb](https://forum.inductiveautomation.com/u/deon.korb)\
**Post date:** [October 10, 2023, 6:47am UTC](https://forum.inductiveautomation.com/t/powerchart-with-canary-historian/80247/2 "2023-10-10T06:47:30Z")

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I will be helpful to mention the versions involved of both Ignition and the Canary module.

There is a bug on where boolean values do not display with 8.1.28 and Canary Module 22.3.2. Don't know if it is fixed yet on newer modules.

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<div class="post-metadata">

**Author:** ![Adam\_Wall](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@Adam\_Wall](https://forum.inductiveautomation.com/u/Adam_Wall)\
**Post date:** [October 10, 2023, 12:56pm UTC](https://forum.inductiveautomation.com/t/powerchart-with-canary-historian/80247/3 "2023-10-10T12:56:08Z")

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Hi-

This would be using ignition 8.1.24 and canary module 22.2.0. This seems to be more of an issue with the aggregation process. I am able to plot 2 tags but when I add more than 2 is when I am getting the error listed above and my chart is blank.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/1/115d182333e175432bbf884c2bc6b98116c1af16.png)