Simulink serial read from Arduino

Projects Interfacing w/ Software on the Computer
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Hi,guys!I have a problem in connection between Simulink and Arduino. I use Arduino read the data of potentiometer. I tried to send this data to Simulink serial receive, but the data that Simulink received is not right.

servo_with_potentiometer.ino (1.12 KB)

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picture 1 is data showed in Serial Monitor
picture 2 is data received by Simulink
picture 3 is the scheme in Simulink
picture 4 is parameters of Serial Receive