This model shows the code generated for a simple subsystem consisting of a few basic Simulink blocks.

This model shows how a subsystem with a few simple Simulink blocks maps to Structured Text.

You can generate PLC Structured Text code for this subsystem by right-clicking on the subsystem block and select PLC Code -> Generate Code for Subsystem

Alternatively, you can use the following command generatedFiles = plcgeneratecode('plcdemo_simple_subsystem/SimpleSubsystem');

After the code generation, the Diagnostic Viewer window is displayed with hyperlinks to the generated code files. You can open the generated files by clicking on the links.