S7-300 to S7-300 communication via profibus

Hi,

I am looking to link 2 S7-300 plc's via profibus. Both PLC's already have profibus set up for communication of HMI's, Motor inverters, remote I/O etc.

Although I have some experience of setting up profibus this is one I haven't tried before and was hoping for a bit of advice before I start the project.

Is it straight forward or should I leave it alone???

Thanks in advance

Jack

I'd use the DP/DP coupler. It leaves your profis quick and clean and you don't have to fuzz with dual masters. The DP/DP acts as a slave on both nets.

Thanks,

I was wandering which PLC would act as master etc. I'll look into a DP/DP coupler.

Jack