# \#s7-1500

**URL:** https://tech-community.robotics.abb.com/tag/s7-1500/800.md

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## [Check Profinet Connection to PLC?](https://tech-community.robotics.abb.com/t/check-profinet-connection-to-plc/9131)

<div class="topic-metadata">

**Author:** [@Paba](https://tech-community.robotics.abb.com/u/Paba)\
**Replies:** 4\
**Last updated:** [October 10, 2019, 8:33am UTC](https://tech-community.robotics.abb.com/t/check-profinet-connection-to-plc/9131 "2019-10-10T08:33:45Z")

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Hello, i just want to check the connection between IRC and S7-1500 at startup. How do i have to setup the profinet device so i can use IOUnitState? I know how to create a new pn device but i have no clue how to assign…