# Duplicate IO tags in driver screen (OPC Studio 5000)

**URL:** <https://community.factoryio.com/t/duplicate-io-tags-in-driver-screen-opc-studio-5000/4262>\
**Category:** Support\
**Created:** [July 17, 2025, 4:21am UTC](https://community.factoryio.com/t/duplicate-io-tags-in-driver-screen-opc-studio-5000/4262 "2025-07-17T04:21:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wiehay79](https://avatars.discourse-cdn.com/v4/letter/w/85f322/32.png) [@wiehay79](https://community.factoryio.com/u/wiehay79)\
**Post date:** [July 17, 2025, 4:21am UTC](https://community.factoryio.com/t/duplicate-io-tags-in-driver-screen-opc-studio-5000/4262/1 "2025-07-17T04:21:42Z")

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I am having trouble connecting to Factory IO using an OPC connection with RSLinx. I am able to connect but I have a duplicate set of every input and output that was made in my PLC program (the IO’s in the box in the driver’s section). I am still a novice to OPC connection and can’t connect with ethernet due to using an emulator. What is the proper way to connect an OPC using an RsLogix emulator and how do I prevent tags from other OPC topics hijacking the drivers menu? I only want the IO tags from my current project but anytime I click the OPC Server tab and then click browse it always imports every IO tag I’ve made from other OPC topics and don’t know how to fix the issue. I have to delete every OPC topic just to clear this issue but isn’t a permanent fix. Thank you

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**Author:** ![adriana.silva](https://dub1.discourse-cdn.com/flex017/user_avatar/community.factoryio.com/adriana.silva/32/752_2.png) [@adriana.silva](https://community.factoryio.com/u/adriana.silva)\
**Post date:** [July 17, 2025, 1:28pm UTC](https://community.factoryio.com/t/duplicate-io-tags-in-driver-screen-opc-studio-5000/4262/2 "2025-07-17T13:28:44Z")

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Hi @wiehay79, welcome to the forum!

In cases like this, we suggest using filters in Factory I/O. The filter configurations are on the driver’s configuration page.

 ![image](https://europe1.discourse-cdn.com/flex017/uploads/factoryio/original/1X/9da6d7a30144a8e5d2399dd44fdbdf1d063a9c63.png)

We usually suggest that the variables be named with a common prefix, such as FIO, for example. So that you’d have variables such as “FIOStartButton” and “FIOStopButton”. That way, when you use the “Filter names that start with:” you can type FIO, and only these will show in the driver page.

I hope this helps