I have read your request,I didn't use WinWedge but I want to tell you this solution can be done with siemens , I assume its PC based software, I'm sure that WinCC which is Siemens SCADA software had that type of interface but I think it might be expensive one, you can use also ProTool-Pro which Siemens Visulation software it have OPC server/Client interface which mean you can export your data to any of MicroSoft applications and from there you can export it to SQL server, I'm not sure if it have direct export facilities for SQL server. another way also is to use CP343-1 IT (communication Processor) which can send recive emails through Industrial Ethernet. all this are online communication types if you dont need it online I think you can use MP270 or MP370 (Multi Panels) as they can Archive messages and process values(on PC/CF card, network drive through Ethernet)some of there specs.:-
-Range of archive types: polling and sequential archive
-Storing of archive data in standard Windows format (CSV)
-External evaluation with standard Excel and Access tools
Hope this data will help you.
Bye