# Modbus serial server/client

**URL:** <https://oscat.discourse.group/t/modbus-serial-server-client/803>\
**Category:** Modulentwicklung\
**Created:** [10. März 2010 um 22:26 UTC](https://oscat.discourse.group/t/modbus-serial-server-client/803 "2010-03-10T22:26:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mbruck](https://yyz2.discourse-cdn.com/free1/user_avatar/oscat.discourse.group/mbruck/32/8_2.png) [@mbruck](https://oscat.discourse.group/u/mbruck)\
**Post date:** [10. März 2010 um 22:26 UTC](https://oscat.discourse.group/t/modbus-serial-server-client/803/1 "2010-03-10T22:26:36Z")

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Sorry, I don’t speak German language, hope you don’t mind I ask in English.

Since documentation is in German, I still not sure is there support for serial port for Modbus functions… Twincat (don’t know for Codesys) support only physical port on motherboard, which my laptop lack, so I USB-serial which is not supported.  
So, my question is network.lib support Modbus serial on usp\<\>serial driver, and if not, is possible to write that support.

Regards!