4-68 D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUALFLEXLOGIC DESIGN USING ENGINEER CHAPTER 4: INTERFACES4Figure 4-73: Completed inputs and outputs9. Add any remaining blocks or information. Right-click a block to copy and paste it. Notes are as follows.Add a text box — Drawing Tools > TextAdd a FlexElement — Elements > FlexElement. An analog input is expected where a small arrow head shows in thebox.Figure 4-74: FlexElement accepts analog inputs on left side where arrow heads displayAdd an Element — Elements tab. Available elements reflect the product, for example the Control Elements category.Figure 4-75: Elements reflect Control Elements10. Check for any blocks that have a red outline. These are invalid. Fix them before continuing, for example by configuringthem.11. Compile the logic diagram to check for errors by clicking the Compile button at the bottom left or by pressing the F7key.If prompted about a message about sorting, click Yes to apply the default (for this example), which can be automaticsorting based on an algorithm that applies fastest execution time.With successful compiling, the file is saved and the FlexLogic equations populate automatically. Scroll up through thecompile messages, with the red errors being the only messages that require fixing before proceeding.The figure shows that we forgot to add the "Io" suffix to the names of virtual outputs 62 and 63, as indicated by"Warning: Virtual output xx using default name." This warning is a minor warning.The warning "input using disabled feature" means that input needs to be enabled. Double-click the block, click theView Associated Screen button, enable the setting, save, and recompile.The output and messages are explained in the next section.
