# Siemens S7-1200 Tag issues in 8.0.6

**URL:** <https://forum.inductiveautomation.com/t/siemens-s7-1200-tag-issues-in-8-0-6/31695>\
**Category:** Ignition\
**Created:** [January 28, 2020, 8:12pm UTC](https://forum.inductiveautomation.com/t/siemens-s7-1200-tag-issues-in-8-0-6/31695 "2020-01-28T20:12:13Z")\
**Posts on this page:** 1\
**Showing post:** 24

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [January 3, 2024, 6:34pm UTC](https://forum.inductiveautomation.com/t/siemens-s7-1200-tag-issues-in-8-0-6/31695/24 "2024-01-03T18:34:44Z")

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Yeah, the S7-1200 OPC UA implementation leaves a lot to be desired. It's much more limited, and any custom structured types defined and used in a "Server Interface" model can't be read by Ignition right now because the S7-1200 doesn't support the older datatype dictionary mechanism.

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