How do you log E+ variables into a csv file using the BCVTB?

I've tried to use the CSVWriter, but I get an input type error no matter what I've tried (can't seem to figure out how to create "record-valued input tokens") and I also cannot figure out how to input the fileName.

For example I tried using "ArrayAccumulate" to store my data into an array before linking that output to the CSVWriter. That failed, bad type too (plus, that wouldn't have worked since I would need to be able to fire CSV generation only at my end timestep)