Controlling the operator of a relational operator block inside a protected model

I have a model in which a relational operator block is used. I am going to export this model as a protected model and then reference it in a reference model block in a new model. I am trying to create a mask for the reference model block through which I can let the user select the operator to be used in the relational operator block inside this locked model.

If this was not a protected model, a simple parameter promotion in the mask editor would have worked. But since this is a protected model, I am unable to do this. Is there a way to acheive this functionality? I usually create a parameter in the model workspace and set is an argument so when I export it as a protected model, I can assign values to the parameter through the mask. Is there some way to set the operator selection as a parameter? Or, is there a different way to approach this problem?

Answer 1

[Fangjun Jiang]

In the model, have 5 (for example) relational operator blocks. Each block applies one of the relational operators that you want. Use a Miltiport switch block to pass the output. Define a model parameter valued from 1 to 5 to control (select) the multiport switch. This is not the most efficient but it should work out.