# WagoSysBacNet library

**URL:** <https://www.wago.community/t/wagosysbacnet-library/740>\
**Category:** CODESYS\
**Tags:** pfc200, codesys\
**Created:** [January 10, 2024, 9:09am UTC](https://www.wago.community/t/wagosysbacnet-library/740 "2024-01-10T09:09:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aggelonod](https://sea2.discourse-cdn.com/flex016/user_avatar/www.wago.community/aggelonod/32/503_2.png) [@aggelonod](https://www.wago.community/u/aggelonod)\
**Post date:** [January 10, 2024, 9:09am UTC](https://www.wago.community/t/wagosysbacnet-library/740/1 "2024-01-10T09:09:22Z")

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Hello everyone,  
While using a PFC200 with CODESYS, the first time i log onto the device after a reboot I get this warning:  
 ![Screenshot 2024-01-10 103242](https://us1.discourse-cdn.com/flex016/uploads/wago/original/1X/92c8a6b25e015b4b63f43d91c94f78d683778684.png)

The Firmware version of my device is: 04.03.03(25).

I have not encountered any problems that may relate to this warning, however I do not want to have any surprises once we launch the project for our client. What is this warning referring to? Are there any other possible issues that can occur that relate to the Firmware version or something else?

Thank you for your feedback.

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<div class="post-metadata">

**Author:** ![AdamReeve](https://sea2.discourse-cdn.com/flex016/user_avatar/www.wago.community/adamreeve/32/59_2.png) [@AdamReeve](https://www.wago.community/u/AdamReeve)\
**Post date:** [January 11, 2024, 9:35pm UTC](https://www.wago.community/t/wagosysbacnet-library/740/2 "2024-01-11T21:35:18Z")

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This is simply a warning from the library itself. It does not check to see what firmware version you are using. Since your firwmare IS version 22 or above (i.e. FW25), you are all set!