# \[Bug?\] Possible to write to tag even in read-only mode

**URL:** <https://forum.inductiveautomation.com/t/bug-possible-to-write-to-tag-even-in-read-only-mode/38548>\
**Category:** Ignition\
**Tags:** ignition80, scripting, perspective\
**Created:** [September 10, 2020, 9:15am UTC](https://forum.inductiveautomation.com/t/bug-possible-to-write-to-tag-even-in-read-only-mode/38548 "2020-09-10T09:15:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Toobor](https://avatars.discourse-cdn.com/v4/letter/t/e95f7d/32.png) [@Toobor](https://forum.inductiveautomation.com/u/Toobor)\
**Post date:** [September 10, 2020, 9:15am UTC](https://forum.inductiveautomation.com/t/bug-possible-to-write-to-tag-even-in-read-only-mode/38548/1 "2020-09-10T09:15:47Z")

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Hi,  
I noticed that it is possible to write to a tag in a script using system.tag.write() even if the communication is set to read-only. Is that meant to be possible?

I am using Ignition 8.0.14

Best regards  
Tobias

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<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:** [September 10, 2020, 1:04pm UTC](https://forum.inductiveautomation.com/t/bug-possible-to-write-to-tag-even-in-read-only-mode/38548/2 "2020-09-10T13:04:12Z")

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You tagged this with “Perspective”. Perspective scripts run in the gateway. The comms-read-only mode only applies to scripts and operations in the Designer and in Vision clients.