# Siemens struct datatype

**URL:** <https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496>\
**Category:** Ignition\
**Created:** [December 28, 2021, 2:21pm UTC](https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496 "2021-12-28T14:21:18Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Corentin.appart](https://avatars.discourse-cdn.com/v4/letter/c/da6949/32.png) [@Corentin.appart](https://forum.inductiveautomation.com/u/Corentin.appart)\
**Post date:** [December 28, 2021, 2:21pm UTC](https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496/1 "2021-12-28T14:21:18Z")

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Hello all,

I need help to get value from a struct Datatype of a Siemens S7-1500 .

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/d/9d355339a5bae8e7ec9c5ead34cda9ce2407086c.png)

i don’t know the syntax for getting “Vitesse” for exemple.

Thanks in advance 🙂

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**Author:** ![jespinmartin1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jespinmartin1/32/57175_2.png) [@jespinmartin1](https://forum.inductiveautomation.com/u/jespinmartin1)\
**Post date:** [December 28, 2021, 3:09pm UTC](https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496/2 "2021-12-28T15:09:26Z")

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You will need the OFFSET column for this one.

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<div class="post-metadata">

**Author:** ![Corentin.appart](https://avatars.discourse-cdn.com/v4/letter/c/da6949/32.png) [@Corentin.appart](https://forum.inductiveautomation.com/u/Corentin.appart)\
**Post date:** [December 28, 2021, 3:32pm UTC](https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496/3 "2021-12-28T15:32:17Z")

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Thanks for your reply,

Yes, that’s what i did for other tags but in this case i don’t have OFFSET column.

Where can i find/add the column ?

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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:** [December 28, 2021, 4:49pm UTC](https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496/4 "2021-12-28T16:49:28Z")

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Is this an optimized DB?

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<div class="post-metadata">

**Author:** ![jespinmartin1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jespinmartin1/32/57175_2.png) [@jespinmartin1](https://forum.inductiveautomation.com/u/jespinmartin1)\
**Post date:** [December 29, 2021, 4:32am UTC](https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496/5 "2021-12-29T04:32:41Z")

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Saw this before, [Question about “The optimized block access must be turned off” - Ignition - Inductive Automation Forum](https://forum.inductiveautomation.com/t/question-about-the-optimized-block-access-must-be-turned-off/33780). Go and uncheck **Optimized block acces** for that DB.

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<div class="post-metadata">

**Author:** ![Corentin.appart](https://avatars.discourse-cdn.com/v4/letter/c/da6949/32.png) [@Corentin.appart](https://forum.inductiveautomation.com/u/Corentin.appart)\
**Post date:** [December 29, 2021, 8:15am UTC](https://forum.inductiveautomation.com/t/siemens-struct-datatype/54496/6 "2021-12-29T08:15:24Z")

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It was an optimized block, i unchecked the Optimized Block acces for that DB, and now it’s ok.

Thanks everybody for your help !

Have a great day ! 🙂