Loss communication

Dear All,

I am having challenges with the Profibus communication of my CPU 314C-2DP with other modules in the network. Currently i can communicate with the CPU and have gone online to check the Diagnostic Buffer. The attached file is the information am getting from the diagnostic buffer of the CPU . I can't analyse these information.

Please can anyone assist me to this challenge

Thanks

hi ugwu,

your DP Master can´t read or write to the adresses that are mentioned in the diagnostic buffer.

I guess the DP-Slave which this addresses are belonging to is not available. Have a look online in the HW-Config which DP-slave it is.

regards,

mopS04

hi ugwu,

your DP Master can´t read or write to the adresses that are mentioned in the diagnostic buffer.

I guess the DP-Slave which this addresses are belonging to is not available. Have a look online in the HW-Config which DP-slave it is.

regards,

 I have checked all the DP-slaves is showing the same status as not available example for one of the module status is:

Please what can i do to make this DP-slaves available

Hi,

After checking the online HW-Config, I realized that all the Slaves-DP are not available.  I also tried to download the project to the CPU and i got compiling error see attached file for reference

thanks

hi ugwu,

can you show a screenshot of HW-config or share the project?

it seems that every node has a copy of its self in the project.

Try to reorganize the project(in Simatic Manager - file -> reorganize)

hope this helps,

regards,

Hi 

I have checked the reorganized net work i have other project with different names and different PLC version

Also for the HW-Congi see the attached file

thanks