The term in Eliwell controllers typically refers to the OEM (Original Equipment Manufacturer) parameter level.
There is a procedure to reset the controller to factory defaults, which resets the passwords to the defaults mentioned above (e.g., 321 ). eliwell+smp5500+password+exclusive
For deeper "exclusive" access or application development, the hardware must be interfaced with external tools: The term in Eliwell controllers typically refers to