More complete documentation on our website is forthcoming, but based on your screen shot. First, remove the ftp:// from the server name. It needs to be just server, no protocol reference. Second, since you have the tool in "Block/None" mode, you don't actually need anything feeding into the tool, it is optional. In "Block/None" mode and nothing feeding it, it behaves like an input tool. In "Block/None" mode with something feeding into it, it will wait until the previous tool has told it the last row has been sent prior to execution.