For the very latest WSDL package for iDRAC8, see this link. The following was released for iDRAC7, LC2.

This package contains WSDL files generated from the following:

The WSDL files are provided for your convenience. You may freely download and use
them as long as you accept this notice. This posting is intended to encourage community effort.

If you find an error or simply want to comment, you may send a note to the mailing list:

linux-poweredge@dell.com