Function block diagram language

A function block diagram (FBD) program is a graphical representation of the input and output relationships in a control system. Build your FBD programs using existing functions from a standard library, function section, or function block section.
The FBD language supports using the following instruction blocks that are supplied with
FactoryTalk Design Workbench
 only:
  • Operators
  • Function blocks
  • Functions
  • User-defined function blocks
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