Because of internal coding of Simulink blocks and the subtle differences in the capabilities of Simulink and Embed blocks, not all Simulink blocks can be completely and automatically translated into corresponding Embed blocks. Some of the translated blocks require that you edit them in some way for them to work correctly in Embed. A smaller number of them are not supported at all. Simulink Block Translations explains the degree to which a Simulink block can be translated into a corresponding Embed block.