# How to change tag readout from JSON to a JSON parsed format

**URL:** <https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [November 9, 2022, 10:04pm UTC](https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325 "2022-11-09T22:04:10Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![mjohnson0238](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@mjohnson0238](https://forum.inductiveautomation.com/u/mjohnson0238)\
**Post date:** [November 9, 2022, 10:04pm UTC](https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325/1 "2022-11-09T22:04:10Z")

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Good afternoon All! How can I change this tags readout from JSON to JSON parsed, like an array - on the tag level or is that possible? Its being read from an RFID reader, Impinj, is the brand.

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/a/fab3d57a030dc6646b39013d4a731e38bb24f2dc.png)

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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:** [November 9, 2022, 10:08pm UTC](https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325/2 "2022-11-09T22:08:39Z")

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Oh, how I wish that's how document/JSON tags worked.

You can explode them out one by one yourself by setting up derived tags that use `jsonGet` and `jsonSet` expressions to target each of the members you're interested in. There's a few posts about it on the forums here, mostly in regards to structure values coming Siemens S7-1500 OPC UA servers, but it's all the same.

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**Author:** ![mjohnson0238](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@mjohnson0238](https://forum.inductiveautomation.com/u/mjohnson0238)\
**Post date:** [November 9, 2022, 10:16pm UTC](https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325/3 "2022-11-09T22:16:17Z")

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I half expected that, lol! Thanks for letting me know to use jsonGet and jsonSet in an expression.

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**Author:** ![Pinos](https://avatars.discourse-cdn.com/v4/letter/p/ee59a6/32.png) [@Pinos](https://forum.inductiveautomation.com/u/Pinos)\
**Post date:** [July 28, 2023, 7:01pm UTC](https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325/4 "2023-07-28T19:01:40Z")

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"I apologize for not having an answer, but I have a question instead. Could you please explain how you managed to connect the Impinj reader in the Ignition configuration page?"

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**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\
**Post date:** [April 3, 2024, 6:42pm UTC](https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325/5 "2024-04-03T18:42:15Z")

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I'm also interested how connected RFID, any info?

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**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\
**Post date:** [April 4, 2024, 6:28am UTC](https://forum.inductiveautomation.com/t/how-to-change-tag-readout-from-json-to-a-json-parsed-format/66325/6 "2024-04-04T06:28:15Z")

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> [@m.pelagatti](#):
>
> how connected RFID,

I've done a lot of RFID recently. All I do is connect the device masters to a PLC using a generic ethernet module, and then, on the ignition side, I simply use normal OPC tags to interface with the PLC.