CU320-2 PN or DP?

Hello,

we want to make an offer for a crane ac drive system which will communicate with a PLC and I don't know which interface is more appropriate for the CU320-2. Is it better to utilize Profibus or Profinet would be better? Price is the same for both interfaces, so it is not an issue. The PLC will be 315-2PN/DP so it will have both interfaces.

Thank you

PN

Why would you use anything else?

Hello,

I am arguing with a colleague here and he insists that since he has never implemented a drive system with PN but only with PB he feels it is risky... I had earlier experience only with PN CU320-2 and lately been using DP with CU320-2 and I know that PN is better but I have to prove it somehow..