Apart from Kepware's OPC products, our portfolio includes OPC servers from other manufacturers. One of them is the German company Deltalogic, offering its OPC server for SIEMENS systems.
If you need to read data from the SIEMENS S5/S7/LOGO! PLC controllers and pass it on to OPC DA client via OPC server, the Deltalogic OPC server is a good solution. However, if you need to read data from systems from various manufacturers and send it to OPC DA/UA client, an ODBC database or the REST/MQTT interface, we recommend that you choose Kepware's KEPServerEX communications platform.