# system.opc.browseServer() nodeId?

**URL:** <https://forum.inductiveautomation.com/t/system-opc-browseserver-nodeid/17631>\
**Category:** Ignition\
**Created:** [April 6, 2018, 10:40pm UTC](https://forum.inductiveautomation.com/t/system-opc-browseserver-nodeid/17631 "2018-04-06T22:40:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![brian.mcenulty](https://avatars.discourse-cdn.com/v4/letter/b/b77776/32.png) [@brian.mcenulty](https://forum.inductiveautomation.com/u/brian.mcenulty)\
**Post date:** [April 6, 2018, 10:40pm UTC](https://forum.inductiveautomation.com/t/system-opc-browseserver-nodeid/17631/1 "2018-04-06T22:40:25Z")

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In the system.opc.browseServer() function, one of the parameters is the nodeId. In all examples I’ve seen this is usually set to “Devices”. What are all the possible values of nodeId?

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**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:** [April 6, 2018, 10:48pm UTC](https://forum.inductiveautomation.com/t/system-opc-browseserver-nodeid/17631/2 "2018-04-06T22:48:11Z")

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Using `None` gets you the root, further browse results will have a NodeId.

For tags from an OPC UA server, OPC Item Path _is_ the NodeId.

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**Author:** ![GeraldB](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/geraldb/32/36210_2.png) [@GeraldB](https://forum.inductiveautomation.com/u/GeraldB)\
**Post date:** [October 27, 2022, 11:40am UTC](https://forum.inductiveautomation.com/t/system-opc-browseserver-nodeid/17631/3 "2022-10-27T11:40:03Z")

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Can you please add such information to the official documentation?