# Configure boolean tag history **URL:** \ **Category:** Ignition\ **Tags:** ignition81\ **Created:** [June 28, 2024, 7:59am UTC](https://forum.inductiveautomation.com/t/configure-boolean-tag-history/92520 "2024-06-28T07:59:13Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![c.k](https://avatars.discourse-cdn.com/v4/letter/c/7feea3/32.png) [@c.k](https://forum.inductiveautomation.com/u/c.k)\ **Post date:** [June 28, 2024, 7:59am UTC](https://forum.inductiveautomation.com/t/configure-boolean-tag-history/92520/1 "2024-06-28T07:59:13Z")
I have an issue where my boolean tags are keep getting logged even while they have the same value. Massivly filling the database with unwanted data. what setting is recomend for a boolean to only log when it acualty changes value. this is what i have tried/used deadband style: discrete deadband mode: absolute historical deadband: tried both the default 0.01 and 1.0 min time between samples: 5 sec max time between samples: 0 ignition 8.1.35 Could it be becaus the tag sometimes goes to another quality, deu to OPC performace limitations in the PLC? "Good\_Overload("Sampling has slowed down due to resource limitations.")" example off unwanted data | tagid | intvalue | floatvalue | stringvalue | datevalue | dataintegrity | t\_stamp | | --- | --- | --- | --- | --- | --- | --- | | 3706 | 1 | NULL | NULL | NULL | 192 | 1719569874932 | | 3706 | 1 | NULL | NULL | NULL | 192 | 1719569875922 | | 3706 | 1 | NULL | NULL | NULL | 192 | 1719570071429 | | 3706 | 1 | NULL | NULL | NULL | 192 | 1719570075495 | | 3706 | 1 | NULL | NULL | NULL | 192 | 1719570334535 | Other question. When do changes to tag settings regarding history go in effect, seems that the changes i do do nothing. ---
**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\ **Post date:** [June 28, 2024, 12:13pm UTC](https://forum.inductiveautomation.com/t/configure-boolean-tag-history/92520/2 "2024-06-28T12:13:21Z")
Are the examples you show back-to-back, or were there points in between? I'm wondering if it's logging based on quality, bouncing between good/bad? Edit, geez... I completely missed your comment about quality, yes, quality will affect when a point is stored. ---
**Author:** ![c.k](https://avatars.discourse-cdn.com/v4/letter/c/7feea3/32.png) [@c.k](https://forum.inductiveautomation.com/u/c.k)\ **Post date:** [June 28, 2024, 12:15pm UTC](https://forum.inductiveautomation.com/t/configure-boolean-tag-history/92520/3 "2024-06-28T12:15:16Z")
It is back to back directly from the database (only filterd on tagid). I expect its a quality thing (editted the post) ---
**Author:** ![c.k](https://avatars.discourse-cdn.com/v4/letter/c/7feea3/32.png) [@c.k](https://forum.inductiveautomation.com/u/c.k)\ **Post date:** [June 28, 2024, 12:16pm UTC](https://forum.inductiveautomation.com/t/configure-boolean-tag-history/92520/4 "2024-06-28T12:16:29Z")
So its logging between good and good? is there a setting somwhere to nuke this beheviour? ---
**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\ **Post date:** [June 28, 2024, 12:32pm UTC](https://forum.inductiveautomation.com/t/configure-boolean-tag-history/92520/5 "2024-06-28T12:32:40Z")
> [@Good\_Overload results in excessive historian logging](https://forum.inductiveautomation.com/t/good-overload-results-in-excessive-historian-logging/76571): > > Hi, We are experiencing troubles with a customer that has excessive historian logging. I suspect the main reason are some tags who flip to Good\_Overload("Sampling has slowed down due to resource limitations.") Quality and then back to GOOD quality. I suspect this issues a historian change and makes the historian log this in our database. Strangly enough the log entry has status code 192. Is there a way to avoid this excessive logging? Thank you, Thijs Ignition Platform 8.1.12 ---
**Author:** ![c.k](https://avatars.discourse-cdn.com/v4/letter/c/7feea3/32.png) [@c.k](https://forum.inductiveautomation.com/u/c.k)\ **Post date:** [July 5, 2024, 9:50am UTC](https://forum.inductiveautomation.com/t/configure-boolean-tag-history/92520/6 "2024-07-05T09:50:55Z")
Ok, this works for 99% of my tags that where expression tags already. now only to find a way to do the remaing tags that are are OPC tags. (without recreating them). It realy shoul have a tickbox "fuck off quality"