Posted 26 May 2015 Hi everyone, I have a S7 1200 with profibus slave module. I want to connect this to S7 400H profibus network. I have added S7 1200 gsd file and configured in S7 400 system. But still Bus fault is there. Please help to configure S7 1200 as a profibus slave in S7 400H master system. Thanks in advance. Joshua. Share this post Link to post Share on other sites
Posted 27 May 2015 (edited) Have you connected the S7 1200 to the profibus network? have you configured the S7 1200 PLC with the profibus parameters and downloaded them? have you set the profibus terminating resistor correctly? Edited 27 May 2015 by Moggie Share this post Link to post Share on other sites