This diagram shows a solution where an PLC, which assumes
the role of a control station, is connected to one or several substations.
Two different serial protocols IEC 60870-5-101 and DNP 3.0 are used.
digital and analog PLC outputs are mapped to commands in the RTU direction.
In the monitoring direction, the information objects from IEC 60870-5-101 and/or
DNP 3.0 are mapped to digital and/or analog inputs.
A similar topography was used for the IBIRITE project.