I have been trying to figure out various combinations and various possibilities to try and figure out what is going wrong and posting on the forum as a last resort. I have been using google and NI tutorials as much as possible before posting on here. The broken wires are caused by the measurement VI, but the issue being the error is not at the DAQ assistants. They are working fine. The problem is connecting the measurement file to the power and energy VIs.
You are trying to write an incompatible signal to the Write To Measurement File VI. The power and energy VIs cannot directly write to the express vi from their output. You need to figure out a way to do it in LabVIEW or do it post processing since you have the current and voltage.
I do not have the add-on to test, so good luck.
Another potential problem to think about.
Power = V I cos(theta)
Right now your current and voltage measurements are not synchronized, you probably have a phase error between the measurements.
The power vi from the EPS suite has the calculations taken care of to calculate the power and energy from the measured current and voltage values.
Your problem appears to lie inside the two functions Energy and Power, which those of us without the special add-on Toolkit you are using will not have. Look at the Help for those functions (or, better yet, do away with the Dreaded Dynamic Data Wires, use "real" LabVIEW constructs such as Arrays and Waveforms, and do the calculations yourself, using the required knowledge for your Thesis Project).
My earlier advice about using "local help" (someone there must know LabVIEW and be able to mentor you) to learn how to solve these kinds of Engineering Problems. What good is a Degree in Engineering if you can't (by yourself) solve Engineering Problems?
The Write To Measurement File express vi is expecting the Dynamic Data type on the Signals input terminal, while the output of each EPS function is a 1D array of clusters.