# Ignition 7.9 issue with OPC tag with green question mark

**URL:** <https://forum.inductiveautomation.com/t/ignition-7-9-issue-with-opc-tag-with-green-question-mark/65686>\
**Category:** Ignition\
**Tags:** ignition79\
**Created:** [October 25, 2022, 10:05pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-issue-with-opc-tag-with-green-question-mark/65686 "2022-10-25T22:05:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kenny\_Schafer](https://avatars.discourse-cdn.com/v4/letter/k/f4b2a3/32.png) [@Kenny\_Schafer](https://forum.inductiveautomation.com/u/Kenny_Schafer)\
**Post date:** [October 25, 2022, 10:05pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-issue-with-opc-tag-with-green-question-mark/65686/1 "2022-10-25T22:05:02Z")

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I am having an issue in Ignition Designer 7.9.4 where I can see the tags in OPC browser (OPC-UA server), but when I drag them into my tag browser, they all have a green question mark and don't display the value. I checked the OPC quick client and when I "read" the specific PV tag, it says " **Status: Good**" and reads the value. The Quality however says "**Quality: [Good] Good; unspecified**".  
below are some screenshots that will hopefully help narrow down my issue.

 ![Diag](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/0/e0cbd0953c08b6aea2ca0357013fe8cee643c48a.png)  
 ![quickclient](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/4/f4d6040d9c3d30aa2bcfe649bff2c453d23875a7.png)  
 ![tags](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/6/26e79bd0acd1145256ad1bc7849afdaa5899c9e1.png)

Edit: Other tags on this gateway are reading currently, so I don't believe it's a gateway issue. the PLC program is 20.5.4.

Let me know if I need to display more information or details and I will happily oblige.

Thanks!

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**Author:** ![Muhammad\_Musarrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/muhammad_musarrat/32/40074_2.png) [@Muhammad\_Musarrat](https://forum.inductiveautomation.com/u/Muhammad_Musarrat)\
**Post date:** [October 26, 2022, 11:05pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-issue-with-opc-tag-with-green-question-mark/65686/2 "2022-10-26T23:05:05Z")

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Which driver are you using for your PLC? Also, when you try reading the value using system.opc.readValue(), what quality code gets returned?

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**Author:** ![selemus](https://avatars.discourse-cdn.com/v4/letter/s/d6d6ee/32.png) [@selemus](https://forum.inductiveautomation.com/u/selemus)\
**Post date:** [March 18, 2025, 9:22pm UTC](https://forum.inductiveautomation.com/t/ignition-7-9-issue-with-opc-tag-with-green-question-mark/65686/3 "2025-03-18T21:22:13Z")

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Hey Kenny\_Schafer were you able to figure this out? I am having the same issue with an OPC tag that's part of the tags from a user-defined tag type. The rest of the tags seem to work just fine but only this one keeps showing the green question mark. The quality value shows as "Unknown" Muhammad\_Musarrat