# OPC with power manager, tags in null

**URL:** <https://forum.inductiveautomation.com/t/opc-with-power-manager-tags-in-null/11664>\
**Category:** Ignition\
**Created:** [May 13, 2016, 2:30pm UTC](https://forum.inductiveautomation.com/t/opc-with-power-manager-tags-in-null/11664 "2016-05-13T14:30:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![giulianacaula](https://avatars.discourse-cdn.com/v4/letter/g/779978/32.png) [@giulianacaula](https://forum.inductiveautomation.com/u/giulianacaula)\
**Post date:** [May 13, 2016, 2:30pm UTC](https://forum.inductiveautomation.com/t/opc-with-power-manager-tags-in-null/11664/1 "2016-05-13T14:30:38Z")

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I have a gateway with an OPC conection to a power manager software.  
The conection status is ‘conected’ but in the designer shows all the tags in null with an unknown quality.  
Any hint ?

Thanks

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**Author:** ![diat150](https://avatars.discourse-cdn.com/v4/letter/d/a587f6/32.png) [@diat150](https://forum.inductiveautomation.com/u/diat150)\
**Post date:** [May 13, 2016, 4:05pm UTC](https://forum.inductiveautomation.com/t/opc-with-power-manager-tags-in-null/11664/2 "2016-05-13T16:05:16Z")

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if you want someone to help you should provide some more information…

like is this opc-ua or opc da? have you tried with an outside client like matrikon explorer or the kepware client?