In MATLAB, if a matrix M is given, then this would be:
t = M(:,1); % 1st column
V = M(:,2); % 2nd column
plot(t, V) % plotting V vs. t
However, in Simulink, it's a little complicated. Luckily, you can use a MATLAB Function block to do wonders.
Double-click the block and enter this code:
function plotfcn(u)
t = u(:,1);
V = u(:,2);
coder.extrinsic('plot')
plot(t, V, 'linewidth', 1.5)
grid on
xlabel('t')
ylabel('V')
