[bcvtb],inputs and outputs energyplus and systemcommand

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Hello I am trying to connect idf to system command (Compiled cpp code) via BCVTB but I have a problem. I have 2 output variables of idf (type of Mass Flow Rate and Temperature ) to system command (Compiled cpp code) .this output variables separated by "vectorDisassembler" and send to system command.(the cpp model simolation thermal storage stratified - These variables are received with the cpp class constructor). outputvaribles of system command (input to idf) ,saved in 2 files and read by "outputfileparser" and mixed with "vectorassembler" and send to idf.(Attached image)

in .cfg file, I defined inputs and outputs variables. so in the bcvtb result, i have 2 inputs and 2 outputs.(Attached image)

Now I can't use this variables because I don't know how to define these variables in idf file. I tried to define this variables in "EMS:sensor","EMS:actuator","EMS:Output varables","EMS:Internal variables","EMS:Global varibles" & "Externalinterface :variablel" but I don't know what these sections are and where I should define the input and output variables. Can anyone help me and explain these sections to me and guide me where to define input and output variables and use them in the model?

Thanks