Tag write permission

[Ahmed_badawi1]

I have a tag which is updated from a gateway script every hour, and i want to protect this tag from being changed from outside the script by any user

[Brandon_Peterson]

Hi Ahmed,
I'd start here: Tag Security Properties | Ignition User Manual

[deon.korb]

Memory tags, read only for all except gateway script

I use a security level called "Internal" and restrict the tag's write permissions to require this level. No users are granted this level, effectively restricting the tag's write permissions to gateway and tag event script.

[Ahmed_badawi1]

That's a good idea