# Connect tag s7-1500 tag is null, bad but device connection is connected

**URL:** <https://forum.inductiveautomation.com/t/connect-tag-s7-1500-tag-is-null-bad-but-device-connection-is-connected/84436>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [January 18, 2024, 10:07am UTC](https://forum.inductiveautomation.com/t/connect-tag-s7-1500-tag-is-null-bad-but-device-connection-is-connected/84436 "2024-01-18T10:07:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chumnan](https://avatars.discourse-cdn.com/v4/letter/c/5daacb/32.png) [@chumnan](https://forum.inductiveautomation.com/u/chumnan)\
**Post date:** [January 18, 2024, 10:07am UTC](https://forum.inductiveautomation.com/t/connect-tag-s7-1500-tag-is-null-bad-but-device-connection-is-connected/84436/1 "2024-01-18T10:07:22Z")

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Dear All  
I have problem about connect tag s7-5000 tag is null, bad  
but device connection is connected .  
I try restart OPC-UA, driver siemens is not good.  
Help me please

Thank you for answer.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/a/2/a222f856c887ee13be9694f8048a8f52beadfea0.png)

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/3/93bcf0512a80af1ae3230eb86d8268fd99c28d90.png)

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<div class="post-metadata">

**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:** [January 18, 2024, 1:09pm UTC](https://forum.inductiveautomation.com/t/connect-tag-s7-1500-tag-is-null-bad-but-device-connection-is-connected/84436/2 "2024-01-18T13:09:14Z")

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Did you set up all of the "Considerations" given in the manual?

[https://docs.inductiveautomation.com/display/DOC81/Siemens#Siemens-Considerationsfor1200and1500Devices](https://docs.inductiveautomation.com/display/DOC81/Siemens#Siemens-Considerationsfor1200and1500Devices)