MATLAB: Can’t I add a block to the model using add_block

add_blocklibraryloadedloadingsimulink

I want to add a block in a Simulink model named myModel.mdl. When I open the model and attempt to add a block using the following code:
open myModel.mdl
add_block('simulink/Sources/In1','myModel/myin1')
I sometimes receive the following error:
 ??? There is no block named 'simulink/Sources/In1'

Best Answer

The Simulink library must be loaded to programmatically add blocks in a model. The LOAD_SYSTEM function can be used to programmatically load the Simulink library as in this example:
load_system('simulink')
open myModel.mdl
add_block('simulink/Sources/In1','myModel/myin1')
Related Question