Hello Leslie,
Input echo is just a summary of all to components of which the equipment comprises. Each component (e.g. cylinder, head, flange etc.) is listed together with all the data that goes with that component.
In Input Value is just the information you give to the programme. I work in the PV Elite department, and I have given the information from that perspective.
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Sincerely,
Ray Delaforce
CADWorx & Analysis Solutions
Hexagon PPM