In Practice as well as Theory
The Pyramid Solutions "Bridgeway" units are my devices of choice for connecting DeviceNet-equipped MCCs (Rockwell as well as others) to Profibus DP and Modbus/TCP enabled DCS and PLC systems.
I just bought one for use with a GE Mark VIe controller, and I have used them with other DCS systems as well as Siemens controllers.
The byte sequencing can be a challenge when using S7 controllers (easier with TI 545) but the Bridgeway is a practical and reliable connection between Profibus DP and DeviceNet.