# Kepware OPC ControlLogix Tag Path Issue

**URL:** <https://forum.inductiveautomation.com/t/kepware-opc-controllogix-tag-path-issue/62319>\
**Category:** Ignition\
**Created:** [July 26, 2022, 6:55pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-controllogix-tag-path-issue/62319 "2022-07-26T18:55:39Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![bill.hyland](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bill.hyland/32/29517_2.png) [@bill.hyland](https://forum.inductiveautomation.com/u/bill.hyland)\
**Post date:** [July 26, 2022, 6:55pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-controllogix-tag-path-issue/62319/1 "2022-07-26T18:55:39Z")

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I need to address a tag in a ControlLogix PLC which only has the channel and device specified.  
The channel is CPU10101, and the device is PLC.  
The tag I’m trying to get to is in the MainTask, Program SUM\_Comm, Tag SUM01\_RIO\_Fault. The tag is BOOL, and created as a Public Parameter, with Read/Write external access.  
When I specify the OPC Item Path as “ns=2;s=CPU10101.PLC.SUM\_Comm.SUM01\_RIO\_Fault” I get Bad for the value with the following popup:  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/1/21fb23462b5bd3c40feeaf2f99299dcefa0814ba.png)

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**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:** [July 26, 2022, 7:05pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-controllogix-tag-path-issue/62319/2 "2022-07-26T19:05:50Z")

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Show your actual code.

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<div class="post-metadata">

**Author:** ![lrose](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lrose/32/62724_2.png) [@lrose](https://forum.inductiveautomation.com/u/lrose)\
**Post date:** [July 26, 2022, 7:05pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-controllogix-tag-path-issue/62319/3 "2022-07-26T19:05:55Z")

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I don’t think that your Item Path is correct. I believe that it should be:

```auto
ns=2;s=CPU10101.PLC.Program:SUM_Comm.SUM01_RIO_Fault

```

I could be wrong though, as I refuse to use Kepware to connect to a device that Igniton can connect to naitively

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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:** [July 26, 2022, 7:08pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-controllogix-tag-path-issue/62319/4 "2022-07-26T19:08:59Z")

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What DataType did you specify for the Ignition tag? If you browse KSE and drag this tag from the OPC Browser to the Tag Browser what’s different?

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<div class="post-metadata">

**Author:** ![bill.hyland](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bill.hyland/32/29517_2.png) [@bill.hyland](https://forum.inductiveautomation.com/u/bill.hyland)\
**Post date:** [July 26, 2022, 7:23pm UTC](https://forum.inductiveautomation.com/t/kepware-opc-controllogix-tag-path-issue/62319/5 "2022-07-26T19:23:49Z")

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That did the trick. Thank you!