regarding zenon logic

[donm]

I m trying to make a logic for getting output KWh of solar power station in every 5minit and also i need to get the difference of kwh (ie current kwh -(minus) previous kwh.
how to make this logic in fbd. what is the function to move the integer value from one to another location.
please help me to solve this problem.

[ursulak]

[ursulak]

I'm not sure what is/are the missing point(s) for you:
- the FBD in general? (then, why not in another language according IEC 61131, the zenon Logic supports few, I prefer to program in ST, is very similar typical programming languages)
- that in a program/subprogram/UDFB you can create additional private variables to store previous value of an input variable.
- how to use a timer function to evaluate the data at particular time/period?
- that a zenon variable can be configured as 'externally visible' for zenon Logic and used as input for any calculations there. The result can be a additional stratonNG variable or INTERN.
and I have no clue what you mean with "move integer value" or "another location".

This Forum is not the right place to start a general programming course; from the scratch. And for use of Logic there is a training. 

If you need just a periodical calculation (made in zenon logic) of values of some zenon variable(s) to the results on another zenon variable(s), and those 4 hints above are not sufficient: contact the support officially and ask for some small example of periodical calculation of process data.

[ursulak]

[donm]

thanks for your reply .