This question is very important because even if you can expose a Parameter, this does not mean that you should do so. Providing too many Parameters will create a complex address space for no good reason. The following questions should be asked:
Who will use this Parameter? The end users like the acquisition results. The configuration tools like the acquisition configuration Parameters. The analyser vendor production people may like setting the serial number. The service personnel may like internal diagnostics. R&D people may like some obscure servo loop control Parameter Which client system component will record the Parameter? The plant DCS likes the concentration The Historian likes absorbance spectrum and concentration The Asset management likes expected remaining life of IR source or laser.