# system.tag.writeAll

**URL:** <https://forum.inductiveautomation.com/t/system-tag-writeall/18722>\
**Category:** Ignition\
**Created:** [July 4, 2018, 4:51pm UTC](https://forum.inductiveautomation.com/t/system-tag-writeall/18722 "2018-07-04T16:51:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Xavier](https://avatars.discourse-cdn.com/v4/letter/x/2bfe46/32.png) [@Xavier](https://forum.inductiveautomation.com/u/Xavier)\
**Post date:** [July 4, 2018, 4:51pm UTC](https://forum.inductiveautomation.com/t/system-tag-writeall/18722/1 "2018-07-04T16:51:45Z")

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i am trying to use this script to write to several tags at the same time. i setup a couple tags and a button to try this but i keep getting an error. this script was copied straight out of the manual.  
using ( 7.9.8)

Error:  
Traceback (most recent call last):  
File “event:mouseClicked”, line 3, in   
AttributeError: ‘com.inductiveautomation.ignition.common.script.Imm’ object has no attribute ‘writeALL’

script:  
tags = [“test tag 1”,“test tag 2”]  
Values = [1,2]  
system.tag.writeALL(tags,Values)

---

<div class="post-metadata">

**Author:** ![witman](https://avatars.discourse-cdn.com/v4/letter/w/d2c977/32.png) [@witman](https://forum.inductiveautomation.com/u/witman)\
**Post date:** [July 4, 2018, 4:55pm UTC](https://forum.inductiveautomation.com/t/system-tag-writeall/18722/2 "2018-07-04T16:55:59Z")

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Case matters. Use `system.tag.writeAll(tags, Values)`. Note the “ll” in “All” is _not_ capitalized.