# TCP Driver - Writable Tag question

**URL:** <https://forum.inductiveautomation.com/t/tcp-driver-writable-tag-question/4559>\
**Category:** Ignition\
**Created:** [May 31, 2012, 7:25pm UTC](https://forum.inductiveautomation.com/t/tcp-driver-writable-tag-question/4559 "2012-05-31T19:25:02Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Travis.Cox](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@Travis.Cox](https://forum.inductiveautomation.com/u/Travis.Cox)\
**Post date:** [May 31, 2012, 7:58pm UTC](https://forum.inductiveautomation.com/t/tcp-driver-writable-tag-question/4559/2 "2012-05-31T19:58:05Z")

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SQLTags doesn’t perform a write if the value is the same as the current value. We do that to eliminate a lot of writes. In this case you should use:`system.opc.writeValue("IgnitionOPCUA", "[DeviceName]Path/To/Tag", "ValueToWrite")`It will perform a write even though the value is the same.

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