It looks like that processor was part of a larger system. All Link projects are, theoretically, unique and can be traced back to the person/company that created them via a project number. If you can identify the project number then the originator or SSD (Parker) may be able to provide you with a copy of configuration.
The configuration tool is called DSD (drive system designer) but, from memory, it is expensive. You may be better off finding an Integrator that still supports Link.
The picture is of a Link 1 processor and you might want to consider upgrading the system to Link 2. I can provide UK contacts for some former colleagues who still support link systems but I don't know anyone in the US - again Parker should be able to help you.
Good Luck,
Nick
Edit: Did it by any chance come from a vacuum metaliser?