[Cause]
When the robot is the DP master, the robot checks the status of the DP slave at the communication destination. The DP slave at the address indicated by the number in parentheses is not yet connected to the network or has not yet been powered on. For details, refer to the explanation of “Diag.Station_Non_Existend of Station_staus_1” in 8.3.1 of “Draft Standard PROFIBUS-DP DIN 19245 Part3”.
[Countermeasure]
Connect the DP slave at the address indicated by the number in parentheses to the network and turn on its power.