In the eXpresseXpress Model topology export format, the Port Flow column specifies the flow direction of the ports listed in the Port column. The following table lists the valid entries in this column for each eXpress port type.
Port Type
Exported Contents of Port Flow column
Alternative Values Recognized by eXpress Topology Import
unused
"unused"
input
"input"
"in"
control
"control"
"ctrl"
output
"output" or "out"
"out"
bidirectional
"bidirectional"
(any other value, including none)
Only a single flow direction can be listed in this column; this value will be used for all ports listed in the Port column. If this column is omitted, the eXpressSpreadsheet Topology Import will assume that the associated port is bidirectional. In the example depicted in the spreadsheet excerpt below, two of the objects have three ports—one input, one output and one bidirectional. The remaining object has one output and one input port.