any video or helpfull documentation for loadcells?

dear members,
if i may ask you kindly for any video or helpful documentation for loadcells with S7 Siemen as well on for wincc?
and if i may also ask you the same for shift register how it works for example flashing 100 leds as christmas tree?

Thank you in advance
I hope i may find the answer

Sincerely Yours,
Eng. Haitham