Hi Dear All,

I am having a problem with CPU 414-2DP. It has 3 slaves over Profibus DP.  Since last few days it started giving faults of EXTF and BUS2F. 

I can connect my laptop with CPU successfully and can access configurations.

Question : How can I access all 03 Slaves from my CPU that which Slave is giving problem so that I can focus on that Slave for its connection / module rectification etc.

BR,

Arish

Closed cause question posted twice.

The second thread with the subject 414-2dp CPU Download Error is published within the conference SIMATIC S7-400 / S7-400H / S7-400F /FH.