# Accessing the CC100 RS-485 interfaces from Linux while CODESYS is using them

**URL:** <https://www.wago.community/t/accessing-the-cc100-rs-485-interfaces-from-linux-while-codesys-is-using-them/2870>\
**Category:** CODESYS\
**Tags:** cc100\
**Created:** [September 14, 2026, 12:40am UTC](https://www.wago.community/t/accessing-the-cc100-rs-485-interfaces-from-linux-while-codesys-is-using-them/2870 "2026-09-14T00:40:29Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![MatthewKim](https://avatars.discourse-cdn.com/v4/letter/m/e79b87/32.png) [@MatthewKim](https://www.wago.community/u/MatthewKim)\
**Post date:** [September 17, 2026, 1:20am UTC](https://www.wago.community/t/accessing-the-cc100-rs-485-interfaces-from-linux-while-codesys-is-using-them/2870/4 "2026-09-17T01:20:55Z")

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> [@Using RS485 port on CC100 with NodeRED](https://www.wago.community/t/using-rs485-port-on-cc100-with-nodered/202/34):
>
> Thanks, Damian. I just tried this on a 751-9301 (FW28) with your image and it worked!

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