# Added S71200 PLC under OPC UA but not showing in OPC Server drop down in Tag Editor **URL:** \ **Category:** General Discussion\ **Created:** [October 16, 2023, 5:32pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541 "2023-10-16T17:32:00Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Chris\_Curry](https://avatars.discourse-cdn.com/v4/letter/c/b5ac83/32.png) [@Chris\_Curry](https://forum.inductiveautomation.com/u/Chris_Curry)\ **Post date:** [October 16, 2023, 5:32pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/1 "2023-10-16T17:32:00Z")
I have added a Siemens S71200 PLC using the OPC UA Device Connections. It is showing connected, but when I go to create a new tag the drop down under OPC Server is blank. ![No OPC Server](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/5/35644d0a36c62eb4d834ca5e73583bc2851b8c6a.jpeg) Am I missing a step? thank you ---
**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:** [October 16, 2023, 5:34pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/2 "2023-10-16T17:34:04Z")
What version of Ignition are you using? I kind of remember a bug where maybe if you had a different tag provider selected in the Tag Browser, or the focus was in the wrong place, or something like that... it caused this to happen. Does this server show up on the OPC Quick Client page in the Ignition Gateway? ---
**Author:** ![Chris\_Curry](https://avatars.discourse-cdn.com/v4/letter/c/b5ac83/32.png) [@Chris\_Curry](https://forum.inductiveautomation.com/u/Chris_Curry)\ **Post date:** [October 16, 2023, 5:58pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/3 "2023-10-16T17:58:06Z")
Hi Kevin, I am using version 8.1.31 The server doesn't show up in OPC Quick Client page, but it does show up as connected in OPC device Connections. If I change from default to system, and drill down, I can see it under Gateway Devices.... ![Devices](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/e/de5b1a5c5e3ecf68ec5b2f0a14379b6589ad4cee.jpeg) thanks ---
**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:** [October 16, 2023, 6:02pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/4 "2023-10-16T18:02:17Z")
If you made a native driver connection under "Device Connections", then you need to have Ignition's normal loopback OPC connection to itself turned on. (Which is how Ignition comes out-of-the-box, so something must have turned it off.) ---
**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:** [October 16, 2023, 6:02pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/5 "2023-10-16T18:02:29Z")
You haven't defined an OPC UA connection to it then, you defined a driver connection using the S7 driver. edit: and yes, as Phil said, something is wrong because you don't seem to have the "loopback" OPC UA connection to Ignition's own OPC UA server defined. ---
**Author:** ![Chris\_Curry](https://avatars.discourse-cdn.com/v4/letter/c/b5ac83/32.png) [@Chris\_Curry](https://forum.inductiveautomation.com/u/Chris_Curry)\ **Post date:** [October 17, 2023, 5:50pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/6 "2023-10-17T17:50:39Z")
Than you for the quick replies, Where would I turn on Ignition's normal loopback OPC connection? Thanks again.... ---
**Author:** ![Chris\_Curry](https://avatars.discourse-cdn.com/v4/letter/c/b5ac83/32.png) [@Chris\_Curry](https://forum.inductiveautomation.com/u/Chris_Curry)\ **Post date:** [October 17, 2023, 5:54pm UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/7 "2023-10-17T17:54:58Z")
I found it... Settings under OPC Connections thanks ---
**Author:** ![Wesley\_Ong](https://avatars.discourse-cdn.com/v4/letter/w/b2d939/32.png) [@Wesley\_Ong](https://forum.inductiveautomation.com/u/Wesley_Ong)\ **Post date:** [October 23, 2024, 6:06am UTC](https://forum.inductiveautomation.com/t/added-s71200-plc-under-opc-ua-but-not-showing-in-opc-server-drop-down-in-tag-editor/80541/8 "2024-10-23T06:06:19Z")
Hi Chris, I'm having the same issue, but couldn't find the option in OPC Connections... Please kindly share a screenshot, thanks