Data Source/Sink blocks

  • Source blocks allow to import into the program any variable available in the system. Additionally the Const Real/Vector allows to create a constant variable or vector.

  • Sink blocks allow to overwrite any variable in the system. Variables that can be written using Sink blocks are:

    • User Variables

    • Desired variables (variables whose name starts with ‘Desired’)

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Source/Sink blocks

Warning

  • Desired variables are naturally written by Guidances algorithms. If an active Guidance is writting a certain Desired variable, writting it with a Sink block should be avoided.

  • Using Sink blocks to overwrite System Variables usually results in the change not taking effect, but in some cases could end up causing 1x autopilot to malfunction.

  • Avoid using Sink blocks to write any variable that does not belong to one of the groups listed above.