Digital Dream EC500 User Manual page 19

After Click "OK",it will popup a window for the options of DLL file as below,pls choose "Digital Dream" as
below.Then press OK. If you do not want to the dialog box to show again any more, select 'Don't ask me this
again'.If connect successfully,Status bar will show "EC500 device is connected to your computer".
6.3 Check EC500 Plug-In in the Mach3 software
Click config plugins in the software main menu,in the pop-down menu select 'PluginConfig',it will show the
DigitalDream Plug-In is enabled:
Digital Dream Mach3 Motion Controller Page -17 EC500 User's Manual