The topology in the figure above is a typical configuration for a system coupling. The ibaLink-SM64-io/-SD16 modules are interface cards for the control systems Simatic S5, Simadyn D or Simicro MMC. The modules have an ibaNet 3Mbit fiber optics interface.

The data from the ibaNet 3Mbit interface are mirrored to 2 configurable PROFIBUS slaves. Thus, the data can be exchanged bidirectionally.

The configuration of the slaves is done in the web dialogs of ibaBM-DP. You do not need ibaPDA for operating this system coupling.

Further explanations on the 3Mbit compatibility mode can be found in chapter Compatibility mode 3Mbit (DP-64 mode).