Model Output/Input Nodes

Hi,

When I import a Model, I have Two nodes - ZRFC_Input and ZRFC_Output. Inside Input Node, I get a subnode called again Output. I also observe that in all developemts, only the ZRFC_Input is used to pass Input parameters to RFC. To get any return values from RFC, we access the Output subnode under this ZRFC_Input node.

Now, My question is why is it done this way. Is there any use for the Output node ZRFC_Output ?

Can anyone eloborate ?

Regards

Gandolf.