# UDT Data Type Parameters Overridden from PLC?

**URL:** <https://forum.inductiveautomation.com/t/udt-data-type-parameters-overridden-from-plc/25552>\
**Category:** Ignition\
**Created:** [June 4, 2019, 6:59pm UTC](https://forum.inductiveautomation.com/t/udt-data-type-parameters-overridden-from-plc/25552 "2019-06-04T18:59:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bvaldovinos](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bvaldovinos/32/6315_2.png) [@bvaldovinos](https://forum.inductiveautomation.com/u/bvaldovinos)\
**Post date:** [June 4, 2019, 6:59pm UTC](https://forum.inductiveautomation.com/t/udt-data-type-parameters-overridden-from-plc/25552/1 "2019-06-04T18:59:26Z")

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The problem I’m seeing is that once instance of my UDT is having a Data Type Parameter overridden when we download code to the PLC. The

This is my definition for the UDT.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/4/40cfbc6771710bceebaa4b345bb7df80231abda9.png)

In an instance of this data type I put a value of _1_ in for the parameter _Num_. I have several other instances of this UDT as well, but those will not have this parameter overridden.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/3/3f960b006884e493661a398f809509e2dc487ec9.png)

Then after downloading code to the PLC, the data type paramter _Num_ shows a value of 0.

Am I setting this up wrong or not understanding something? Is this a bug? I’m still looking in to this and will report back if I find anything out.