# Multiple Speeds in Scan Class

**URL:** <https://forum.inductiveautomation.com/t/multiple-speeds-in-scan-class/20311>\
**Category:** Ignition\
**Created:** [October 22, 2018, 9:51pm UTC](https://forum.inductiveautomation.com/t/multiple-speeds-in-scan-class/20311 "2018-10-22T21:51:03Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![kurt](https://avatars.discourse-cdn.com/v4/letter/k/b19c9b/32.png) [@kurt](https://forum.inductiveautomation.com/u/kurt)\
**Post date:** [October 22, 2018, 9:51pm UTC](https://forum.inductiveautomation.com/t/multiple-speeds-in-scan-class/20311/1 "2018-10-22T21:51:03Z")

</div>

For scan classes is there a way to get more than two scan speeds, i.e. Slow Rate and Fast Rate. We have a process where we would like one rate for “Idling” (slow rate), one rate for “Energized” (faster rate), and a third rate for “Firing” (as fast as we can go).  
Thanks,  
Kurt

---

<div class="post-metadata">

**Author:** ![StefanGronberg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/stefangronberg/32/6288_2.png) [@StefanGronberg](https://forum.inductiveautomation.com/u/StefanGronberg)\
**Post date:** [October 23, 2018, 5:36am UTC](https://forum.inductiveautomation.com/t/multiple-speeds-in-scan-class/20311/2 "2018-10-23T05:36:25Z")

</div>

Hi Kurt.

In the editor, in the Tag Browser you have a stop-watch icon, in there you can edit and manage scan classes.

 ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/ee927547d3d3f7eeb8469e8e5257c9ddc22f6ee1.png)

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [October 23, 2018, 12:24pm UTC](https://forum.inductiveautomation.com/t/multiple-speeds-in-scan-class/20311/3 "2018-10-23T12:24:47Z")

</div>

There’s no way to do a third rate. Sounds like something to put on [ideas.inductiveautomation.com](http://ideas.inductiveautomation.com). If I were to pursue something like this, I’d prefer to see the pace as a writable parameter of the scan class. I understand there are major changes coming in v8, too.

---

<div class="post-metadata">

**Author:** ![whitson.brandon](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/whitson.brandon/32/79016_2.png) [@whitson.brandon](https://forum.inductiveautomation.com/u/whitson.brandon)\
**Post date:** [October 23, 2018, 2:36pm UTC](https://forum.inductiveautomation.com/t/multiple-speeds-in-scan-class/20311/4 "2018-10-23T14:36:30Z")

</div>

The scan class for a tag is editable with [system.tag.editTag](https://docs.inductiveautomation.com/display/DOC79/system.tag.editTag) I've got several projects that change the scan class when needed. You'll have to have something that runs a script to make the change automagical but it does work.