# Tag is True but in chart is false. Why? **URL:** \ **Category:** Ignition\ **Tags:** perspective\ **Created:** [August 25, 2025, 11:02am UTC](https://forum.inductiveautomation.com/t/tag-is-true-but-in-chart-is-false-why/110145 "2025-08-25T11:02:02Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Pedro\_Carvalho](https://avatars.discourse-cdn.com/v4/letter/p/ec9cab/32.png) [@Pedro\_Carvalho](https://forum.inductiveautomation.com/u/Pedro_Carvalho)\ **Post date:** [August 25, 2025, 11:02am UTC](https://forum.inductiveautomation.com/t/tag-is-true-but-in-chart-is-false-why/110145/1 "2025-08-25T11:02:02Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/0/4/04a37828ff669aaa2e13251815fe1971862644cf.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/a/d/ad09eb28eb95954352839927dc0f2d0c8c9544a2.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/c/ccef495c99840e7281fe43ac3bc23ed406d12d24.png) **Good afternoon,** The tag I am using to visualize in the chart is the one shown in the first image, and it is currently set to _true_. However, on the chart it is being displayed as _0_. I have already analyzed the situation, and I believe the issue may be that the tag is not storing historical data. Nevertheless, the configurations are the same as for other tags, and those are working correctly. Could someone please assist me with this? ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [August 25, 2025, 11:15am UTC](https://forum.inductiveautomation.com/t/tag-is-true-but-in-chart-is-false-why/110145/2 "2025-08-25T11:15:11Z")
Try setting the Deadband ~~Mode~~ Style to Discrete. Depending on the tag type Auto mode will select Discrete or Analog. Analog mode data compression waits to see a change in trend direction or a move outside the deadband. Discrete doesn't. > **[Configuring Tag History | Ignition User Manual](https://docs.inductiveautomation.com/docs/8.1/ignition-modules/tag-historian/configuring-tag-history#deadband-discrete-style-and-analog-compression)** > > In 8.1.17, the Tag Editor was redesigned to improve usability. The new Tag Editor now requires fewer clicks and keeps relevant tag information visible while modifying bindings, alarms, and event scripts. ---
**Author:** ![Pedro\_Carvalho](https://avatars.discourse-cdn.com/v4/letter/p/ec9cab/32.png) [@Pedro\_Carvalho](https://forum.inductiveautomation.com/u/Pedro_Carvalho)\ **Post date:** [August 25, 2025, 11:24am UTC](https://forum.inductiveautomation.com/t/tag-is-true-but-in-chart-is-false-why/110145/3 "2025-08-25T11:24:18Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/c/2ca61a854a4eb4d7594677caa1d6d97fd2196474.png) In Deadband Mode its impossible to put Discrete, i put Discrete in Deadband Style, in Deadband Mode i continue put Absolute but doesn’t work ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [August 25, 2025, 11:35am UTC](https://forum.inductiveautomation.com/t/tag-is-true-but-in-chart-is-false-why/110145/4 "2025-08-25T11:35:45Z")
> [@Pedro\_Carvalho](#): > > i put Discrete in Deadband Style Yes, that is what I meant. Sorry. You might have to wait until the value changes before Historian records it. You could also set Max Time Between Samples to 1 hour so that you get a reading every hour even if the tag value never changes. Q1. What chart component is that? Q2. Can you show us the Tag History binding configuration? ---
**Author:** ![Pedro\_Carvalho](https://avatars.discourse-cdn.com/v4/letter/p/ec9cab/32.png) [@Pedro\_Carvalho](https://forum.inductiveautomation.com/u/Pedro_Carvalho)\ **Post date:** [August 25, 2025, 11:48am UTC](https://forum.inductiveautomation.com/t/tag-is-true-but-in-chart-is-false-why/110145/5 "2025-08-25T11:48:09Z")
I already solve the problem, i dont know what happened but my opc connection was deleted and thats why i dont have history because i dont have the respetive tag… Thanks and sorry for this time wasted. ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [August 25, 2025, 11:51am UTC](https://forum.inductiveautomation.com/t/tag-is-true-but-in-chart-is-false-why/110145/6 "2025-08-25T11:51:10Z")
No problem. That would have shown up in the Tag browser as _Bad_.