Product Description 6DD1661-0AD0Spare part SIMATIC TDC Communication module CP 50M0 with 8 MB buffer module up to 2 MPI interface, up to 2 PROFIBUS DPInterfaces Use as DP master with parameterization SW "COM-PROFIBUS" (compatible operating system versions to be observed) Specification Article Number (Market Facing Number)6DD1661-0AD0Product DescriptionSpare part SIMATIC TDC Communication module CP 50M0 with 8 MB buffer module up to 2 MPI interface, up to 2 PROFIBUS DPInterfac