TCP/IP returns empty bytes while connectred

I Tried to stream data from simulink to python. using tcp ip.

matlab model

python code is as below

import socket

# Set up a TCP server

PORT =31515

HOST='127.0.0.1'

s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.connect(('127.0.0.1', PORT))

print("connected")

BUFFER_SIZE=1024

while True:

# receive data from Simulink

data = s.recv(BUFFER_SIZE)

#datanew=read(s)

print(data)

converteddata = bytes(data)

#print('received data:', converteddata)

s.close()

but it only returns empty bytes instead of values like this

b' '

how can we get the values to python, using tcpip from simulink?

and the delay data is printed is also long.

[Surya]

Hi,

By reducing the buffer size, adding a small delay to your python may help.

Try:

import socket
import time

# Set up a TCP server
PORT = 31515
HOST = '127.0.0.1'
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
print("Connected")

BUFFER_SIZE = 256  # Reduced buffer size
while True:
    # Receive data from Simulink
    data = s.recv(BUFFER_SIZE)

    # Process received data
    if data:
        # Convert data to appropriate format as needed
        print(data)

    # Add a small delay to reduce CPU usage
    time.sleep(0.01)
    
s.close()