make initial value in data testing

[EricMgNiBh]

Hi everyone

I am testing load cell , and as the firstl value which sensors shows me is not 0, I need to initial my first value.

The thing is I use numerical controller and I just substract the initial value from my others data to see actual data.

The thing is I want to make this program automatically , I mean when I press start button the program automatically measure first data, save it and use it as initial data.

do you have any idea , suggestion ? thanks

[RavensFan]

On first run of the while loop, store the value in a shift register.

[EricMgNiBh]

Hi how can I store the first value ? could you tell me setp by step please , thanks

[RavensFan · Accepted solution]

See below.