Profibus Cable 830-IT

[tientran]

Hi Folks,
I am new to the S7-300 and the whole Profibus communication. And I just wonder that can you connect a S7-300 module to a Beckhoff Bus Coupler with an 830-IT cable. I have trying to do it but failed. Is my cable is bad or it's just impossible to do so?
Thanks you all !!!

 

[JRW]

I had to google that particular cable number

It appears to have the resistors at the ends built in

https://mall.industry.siemens.com/mall/en/WW/Catalog/Products/9300037



For a test, lower your baud rate way down and try it.
You may also have the wrong gsd file for the Beckhoff ?