Hello

I have connecting two cpu 313c-2DP with a cable profibus, the PC adapter (MPI) is connected with a master CPU but i have an error (SF and BF are RED).

In the partners accesible I show just the CPU master 

My cable profibus is on mode on in the two sens 

see attachment 

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Split from Configuration Profibus DP esclave sur CPU 315-2DP.

AutoGen_1027479

Hello

I have connecting two cpu 313c-2DP with a cable profibus, the PC adapter (MPI) is connected with a master CPU but i have an error (SF and BF are RED).

In the partners accesible I show just the CPU master 

My cable profibus is on mode on in the two sens 

see attachment 

 Hello,

Check diagnostic buffer

How is you Hardware configuration in both side? Have some photo? 

Hello,

also info about configuration/programming SW can be fine. In simple answer, you can use more communication options how Exchange data between 2 PLC via integrated Profibus port. One option can be create one PLC as DP Master and next configure as DP Slave, this can be made with add next CPU in cfg under DP configured station (hope I remember ok), look to library. Second option can be use some instructions, in this case look to documentation about communication between 2 CPUs.

Hello,

look, some topics under this one you can probably find your answer, only put some energy to this.

Profibus between cpu1516 3PN/DP and cpu315-2dp

Hello:

Here are a few more links, not perfect by themselves, but the should be helpfu:

- a step-buy-step video tutorial on S7-300 maser-slave over Profibus-DP, with TIA Portal 

(well-done, in Spanish);

https://www.youtube.)com/watch?v=ciTbYIYs0LI

- a manual on Profibus-DP configurations with TIA Portal, with examples based on the S7-1500

SIMATIC PROFIBUS PROFIBUS with STEP 7 V13

https://support.industry.siemens.com/cs/fr/en/view/59193579

Hope this helps,

Daniel chartier