Create a Simulink^® model ext_demo1.slx that has a top-level subsystem with two child subsystems, S1, S2, a MATLAB^® Function block, and a Stateflow^® chart.

The S1 and S2 blocks are identical and contain a simple feedback loop.The Stateflow chart contains a simple state machine.

The MATLAB function block implements this code:

function y = fcn
persistent i;

if isempty(i)
    i=0;
end

if (i>20)
    i = 0;    
else
    i=i+1;
end

y = sin(pi*i/10);

Select the top-level subsystem and open the PLC Coder app. On the PLC Code tab, click Settings > PLC Code Generation and select the Target IDE as Rockwell Studio 5000: AOI. On the Interface pane, select Generate logging code. Click OK.

In the model, select the top subsystem block. On the PLC Code tab, click Generate PLC Code.

You generate the ext_demo.L5X code for the top subsystem block, the children S1, S2, the MATLAB function, and Stateflow chart blocks. Also generated is the plc_log_data.mat, which has the external logging data information.