# System.opc.browse folderPath filter

**URL:** <https://forum.inductiveautomation.com/t/system-opc-browse-folderpath-filter/9147>\
**Category:** Ignition\
**Created:** [October 6, 2014, 1:03pm UTC](https://forum.inductiveautomation.com/t/system-opc-browse-folderpath-filter/9147 "2014-10-06T13:03:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [October 6, 2014, 1:03pm UTC](https://forum.inductiveautomation.com/t/system-opc-browse-folderpath-filter/9147/1 "2014-10-06T13:03:54Z")

</div>

I use the following function  
system.opc.browse(opcServer, device, folderPath, opcItemPath)  
to query “exposed Tag” (test purpose to simulate in ignition the system who will read/write exposed tag)

with a folderPath “TEST/_", nothing is returned  
with a folderPath "_/TEST/\*”, to much tag return returned

opc item Path are : ns=2:s=[default]TEST/…  
opc item Path I dont wan’t to list are : ns=2:s=[default]path/to/TEST/…