MATLAB: Using UDP in Simulink Real-Time, why do I get a Bind Failed Error

Question

Using UDP in Simulink Real-Time, why do I get a Bind Failed Error?

Answer 1

There are different Bind Failed Error causes, distinguished by their Error Codes:

Error 10013:

This error can occur if the port is already in use.

Try changing the port number to something else (recommended range [1024 65535]) since ports < 1024 can sometimes be reserved.

Error 1 (204):

This error can be caused by the Real-time UDP Configuration block executing after a UDP Send/Receive Block.

Confirm this by viewing the block execution order (Display -> Blocks -> Sorted Execution Order).

To ensure that the UDP Configuration Block executes first, set the Priority (right click -> Properties) on the corresponding blocks.

Note that a lower priority causes a block to be executed first.

If you encounter a Bind Failed Error not listed here, please contact MathWorks Technical Support.