subplot(511), plot(time,conv1), grid on, ylabel('conveyor 1 [l/sec]')
subplot(512), plot(time,conv2), grid on, ylabel('conveyor 2 [l/sec]')
subplot(513), plot(time,level1), grid on, ylabel('level di SILO 1 [cm]')
subplot(514), plot(time,masuk_silo2), grid on, ylabel('masuk SILO 1 [cm]')
subplot(414), plot(time,level2), grid on, xlabel('time [seconds]'),ylabel('level di SILO 2 [cm]')