This software does not work for DL16 or DL32.

If you do not have access to a console, then you can use the I/O Updater which can be found in the download pages of of the Midas DL I/O boxes (except DL16 and DL32)

Here is a link to the DL231 download page.  It is the same software no matter which DL page you download it from.