I am trying to compile using the Fan Drive SSA block, and I continue to get an error saying *** ERROR 309 *** [CHPARGU1] APPLICATION BLOCK IS LOCKED TO HARDWARE {10106603}. Reading through some things, it looks like you have to have keyed hardware in order to load a program containing an SSA onto the controller, but there shouldn't be a restriction on compiling it to create your downloadable file, right? All help is appreciated.