Connecting AS ABAP Systems to the
SLD
The following figure shows how AS ABAP systems send system data to the SLD:

The data supplier periodically sends data to the SLD bridge via the SAP Gateway by using an RFC connection.
More information:
Architecture Overview of the SLD Data Suppliers
If your AS ABAP system is running on a release lower than 6.30 and contains the data supplier function, you have to perform an initial configuration of the SLD data supplier.
More information: Setting Up the SLD Data Supplier for AS ABAP Based Systems
Some components, such as SAP NetWeaver PI and the SAP Solution Manager, use the SLD Application Programming Interface for ABAP-based systems (SLD ABAP API) to read data from and write data to the SLD.
More information: Using SLD API on ABAP-Based Systems