# OPC item path?

**URL:** <https://forum.inductiveautomation.com/t/opc-item-path/3613>\
**Category:** Ignition\
**Created:** [November 16, 2011, 6:12pm UTC](https://forum.inductiveautomation.com/t/opc-item-path/3613 "2011-11-16T18:12:28Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![scott\_rister](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@scott\_rister](https://forum.inductiveautomation.com/u/scott_rister)\
**Post date:** [November 16, 2011, 6:12pm UTC](https://forum.inductiveautomation.com/t/opc-item-path/3613/1 "2011-11-16T18:12:28Z")

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did the convention for the OPC Item Path definition change between versions 7.2.8 and 7.3?  
I’ve recently upgraded and notice all of my tags (i only had a few) are no longer active. When i re-iport from say, the Simulator OPC i see the path has changed from  
[Simulator]ItemName to “[Simulator]\_Meta:ItemName” is this normal? Will “\_Meta” always be a suffix to the OPC name?  
thanks,

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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:** [November 16, 2011, 6:23pm UTC](https://forum.inductiveautomation.com/t/opc-item-path/3613/2 "2011-11-16T18:23:41Z")

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It’s only the simulator drivers that changed. Easiest way is to just drag the tags in again.

There’s also a 7.3-specific Dairy Demo project on the website.

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<div class="post-metadata">

**Author:** ![scott\_rister](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@scott\_rister](https://forum.inductiveautomation.com/u/scott_rister)\
**Post date:** [November 16, 2011, 7:28pm UTC](https://forum.inductiveautomation.com/t/opc-item-path/3613/3 "2011-11-16T19:28:04Z")

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Thanks,  
since were on the subject, can you tell me how to bit pick integer items to create a boolean tag?  
example in a SLC, B3:0 is the integer, but B3:0/0 is the first bit but when i try and create a boolean tag using B3:0/0 does not appear to work.  
along the same lines, how about bit picking an integer tag to display as a boolean component on a graphic?  
thanks again,

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<div class="post-metadata">

**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:** [November 16, 2011, 7:31pm UTC](https://forum.inductiveautomation.com/t/opc-item-path/3613/4 "2011-11-16T19:31:28Z")

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What version of Ignition are you using? I’m pretty sure there was a bug in 7.3.0 that prevented addressing bits on SLCs.

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<div class="post-metadata">

**Author:** ![scott\_rister](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@scott\_rister](https://forum.inductiveautomation.com/u/scott_rister)\
**Post date:** [November 16, 2011, 8:18pm UTC](https://forum.inductiveautomation.com/t/opc-item-path/3613/5 "2011-11-16T20:18:31Z")

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just upgraded to 7.3.0.  
what is the latest version i should be using?

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**Author:** ![Travis.Cox](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@Travis.Cox](https://forum.inductiveautomation.com/u/Travis.Cox)\
**Post date:** [November 16, 2011, 8:30pm UTC](https://forum.inductiveautomation.com/t/opc-item-path/3613/6 "2011-11-16T20:30:28Z")

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The latest version is 7.3.1 which you can get from our [downloads page](http://inductiveautomation.com/downloads/ignition).