# OPC-UA to RSLogix5000 Emulator?

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-to-rslogix5000-emulator/4849>\
**Category:** Ignition\
**Created:** [July 19, 2012, 11:20pm UTC](https://forum.inductiveautomation.com/t/opc-ua-to-rslogix5000-emulator/4849 "2012-07-19T23:20:00Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![jesse.manders](https://avatars.discourse-cdn.com/v4/letter/j/aca169/32.png) [@jesse.manders](https://forum.inductiveautomation.com/u/jesse.manders)\
**Post date:** [April 6, 2021, 3:25am UTC](https://forum.inductiveautomation.com/t/opc-ua-to-rslogix5000-emulator/4849/21 "2021-04-06T03:25:15Z")

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Also looking for a solution to this. OPC Server from RSLinx properly connected, can browse through the OPC Tag folders in "OPC Quick Client" but all tags show a "Bad\_NotConnected" quality. Read returns null and writes are not successful.

EDIT: Arrived at a solution! Uncheck the box for OPC Config setting "Use Async Operations" After this all tags values read/write successfully.  
@elliot.lohr In case you never resolved this yourself 🙂  
Studio V32, Emulate V32, RSLinx Classic, Ignition 8.1.3, All running on same windows VM.

> [@OPC-DA to RSLinx Classic (Emulated PLC)](http://forum.inductiveautomation.com/t/opc-da-to-rslinx-classic-emulated-plc/11667/24):
>
> If you have problems with the tags, and you can’t write/read the values of the tags, try this. It probably helps you. NOTE THIS IS FOR IGNITION 7.7 DON’T KNOW IF THE NEWER VERSIONS HAVE THIS… In the OPC-COM server configuration, there’s an OPC Setting called “Use Async Operations”. I unchecked this setting and after that, I can read/write the tags without any problem.

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