# Created a Output tag in PLC (Allen Bradly) not populating in SCADA

**URL:** <https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387>\
**Category:** Ignition\
**Created:** [May 5, 2026, 4:22pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387 "2026-05-05T16:22:58Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![krchavav](https://avatars.discourse-cdn.com/v4/letter/k/a183cd/32.png) [@krchavav](https://forum.inductiveautomation.com/u/krchavav)\
**Post date:** [May 5, 2026, 4:22pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/1 "2026-05-05T16:22:58Z")

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I have created a tag in PLC (Output tag) it is not connected to any out put terminal. I am trying to browse this tag in SCADA but it is not populating? I am not able to see the created PLC tag.

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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:** [May 5, 2026, 4:49pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/2 "2026-05-05T16:49:55Z")

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Share more. PLC model, firmware (if Logix), driver you are using, OPC Item Path you have, et cetera.

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**Author:** ![ken.maze](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ken.maze/32/85876_2.png) [@ken.maze](https://forum.inductiveautomation.com/u/ken.maze)\
**Post date:** [May 5, 2026, 5:57pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/3 "2026-05-05T17:57:52Z")

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Make sure your PLC is in run mode, not program mode. That gets me quite often until I notice it.

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**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [May 5, 2026, 6:40pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/4 "2026-05-05T18:40:13Z")

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> [@ken.maze](#):
>
> Make sure your PLC is in run mode, not program mode.

This doesn't affect the subscribing of the tag in ignition though, you can still browse and read the tags when the plc is in program mode

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**Author:** ![ken.maze](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ken.maze/32/85876_2.png) [@ken.maze](https://forum.inductiveautomation.com/u/ken.maze)\
**Post date:** [May 5, 2026, 7:12pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/5 "2026-05-05T19:12:21Z")

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I said that incorrectly. At least for Rockwell Logix, if you haven't yet downloaded the program with your new tag and put the PLC into run mode, you won't see it yet. If you work mostly in offline mode like me at least.

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**Author:** ![krchavav](https://avatars.discourse-cdn.com/v4/letter/k/a183cd/32.png) [@krchavav](https://forum.inductiveautomation.com/u/krchavav)\
**Post date:** [May 5, 2026, 8:08pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/6 "2026-05-05T20:08:45Z")

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Thank you for responding everyone. I am able to see the tag in SCADA. However it shows local tags that I created (Scope- Main program) I create global tag with controller scope and it wasn't showing it in SCADA but when I tried local tags it was available under main program folder.  
I don't know the reason why it let lcoal tag visible and not global. I will check on this.

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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:** [May 5, 2026, 8:34pm UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/7 "2026-05-05T20:34:08Z")

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Check for "ExternalAccess: None". That will prevent external systems from seeing that tag.

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**Author:** ![krchavav](https://avatars.discourse-cdn.com/v4/letter/k/a183cd/32.png) [@krchavav](https://forum.inductiveautomation.com/u/krchavav)\
**Post date:** [May 6, 2026, 11:25am UTC](https://forum.inductiveautomation.com/t/created-a-output-tag-in-plc-allen-bradly-not-populating-in-scada/115387/8 "2026-05-06T11:25:15Z")

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Sure, I will look for this.
