# Error Writing : Bad\_Unsupported MicroLogix 1100

**URL:** <https://forum.inductiveautomation.com/t/error-writing-bad-unsupported-micrologix-1100/28421>\
**Category:** Ignition\
**Created:** [September 20, 2019, 6:53am UTC](https://forum.inductiveautomation.com/t/error-writing-bad-unsupported-micrologix-1100/28421 "2019-09-20T06:53:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rezkaprayudha](https://avatars.discourse-cdn.com/v4/letter/r/cab0a1/32.png) [@rezkaprayudha](https://forum.inductiveautomation.com/u/rezkaprayudha)\
**Post date:** [September 20, 2019, 6:53am UTC](https://forum.inductiveautomation.com/t/error-writing-bad-unsupported-micrologix-1100/28421/1 "2019-09-20T06:53:45Z")

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Hello,

I’m accessing Input tags of MicroLogix 1100 and found that i can not write to Input Tags (I:0/0 etc)  
However, i can write to memory tag like N7 or B3.

I’ve checked all the necessary setting and it all set in Read/Write Mode

Could you please tell me what am i missing? Or is it because the tags are physical tags hence you could not “write” to it.

thx

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [September 21, 2019, 3:01am UTC](https://forum.inductiveautomation.com/t/error-writing-bad-unsupported-micrologix-1100/28421/2 "2019-09-21T03:01:41Z")

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Inputs are typically read-only. Apparently this applies to your Micro1100. Even if it let you write to it, the value would be immediately replaced by the actual physical input…