adding "Rate_Transition" block via Add_Block() error

Hi, I tried several time with follwing lines to add a simulink "Rate Transition" block via script, why do I always get an error?

    try
    add_block('built-in/Rate Transition', ...
        'rplg_CL/Rate Transition', ...
        'Position',[650,midd-20,750,midd+20]);
    catch
    add_block('simulink/Signal Attributes/Rate Transition', ...
        'rplg_CL/Rate Transition', ...
        'Position',[650,midd-20,750,midd+20]);
    end

Error is:

There is no block named 'simulink/Signal Attributes/Rate Transition'

Any idea? BTW, how can I know which name of the block I should use to add a block?

Answer 1

[Fangjun Jiang]

Use add_block('built-in/RateTransition', ...) without the white space.

This could be improved on the TMW side. If you look at doc add_block, it says:

You can use 'built-in/blocktype' as a source block path for Simulink built-in blocks (blocks available in Simulink block libraries that are not masked blocks), where blocktype is the built-in block's type, i.e., the value of its BlockType parameter.

The 'BlockType' property of that block is 'RateTransition', not 'Rate Transition'.

To use 'simulink/Signal Attributes/Rate Transition', you have to use char(10) to replace the white space in 'Signal Attributes'. This is another place that needs to be improved on the TMW side, in my opinion.