Merge Block Initial Output Warning

Getting the error:

The 'Initial output' parameter of Merge block 'XXX' can no longer be specified by signal object in the simplified initialization mode. You can still use signal objects to initialize the input or the output signals for Merge blocks, but the initialization results may be overwritten by those of the Merge blocks.

Any tips on how to get rid of this?

[John Hosford]

I'm seeing it too. I came here for a solution, but I'll just leave this here to let you know you're not the only one seeing it

Answer 1

[Brahmadev]

Hi Claudia,

I understand that you are trying to use the merge block and facing the aforementioned warning. This warning is caused due to the "InitialValue" parameter of the 'Simulink.Signal" object connected to the input port of the "Merge" block. You can manually set the "InitialValue" parameter to an Empty String to resolve the warning. Kindly refer to the following code as an example

InputName.InitialValue = 0; % Replace "InputName" with the name of your Simulink.Signal object 

If you face any issue in this, follow the workflow below to connect a "Simulink.Signal" manually to the Input Signal of your "Merge" block.

>> y = Simulink.Signal
>> y.CoderInfo.StorageClass = "ExportedGlobal";
>> y.CoderInfo.Identifier = "y"
>> y.InitialValue = ""

Then, right click on the input signal to the Merge block and navigate to

Properties >> Signal name = y, then the Signal name must resolve to signal object.

Hope this helps in resolving your issue!

Best Regards,

Brahmadev