Function Block Diagram (FBD) is a programming language using function block diagrams that can describe the function between input variables and output variables. A FBD can replace thousands of lines from a textual program that is a deliverable document of the FEED and Detailed Design and Engineering generated by a CSI (Control Systems and Instrumentation) discipline.
Related Definitions in the Project: The CSI Engineering; FEED Deliverable; Detailed Design and Engineering Deliverable
