Hello, Ausman, the production is not always 7/7, it might be 5/7, 6/7 or 7/7, it depends. HSC definitely is not necessary, because the counting frequency vary from 15 to 30 Hz. I am not the author of the original program, so I tried to add only what was necessary for SCADA project.
Regarding the set of SI, I used SI 37 and the program works for the time being, I keep on monitoring it in case there is some bug.