Matlab : Telnet to remote machine not successful

Question

Siva Meduri 2024-6-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2131471-matlab-telnet-to-remote-machine-not-successful

回答： Andrei 2024-8-30

tCmd = tcpip("10.232.133.147", 5023);
fopen(tCmd);
fwrite(tCmd,':SOUR:POW:AMPL -63 DBM ' );
fclose(tCmd);

I also tried with tcpclient in place of tcpip , still telnet is unsuccesful to remote machine

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Siva Meduri 2024-6-25

编辑：Walter Roberson 2024-6-25

在 MATLAB Online 中打开

Even I gave \n in fprintf , I am not able to send command to server appropriately. Please share what I am missing.

t = tcpip('10.232.133.147', 5023); 
set(t, 'InputBufferSize', 30000);  
fopen(t); 
command =':SOUR:POW:AMPL -63 DBM'
fprintf(t, "%s\n", command); 
pause(1) 
while (get(t, 'BytesAvailable') > 0) 
t.BytesAvailable 
DataReceived = fscanf(t) 
end 
fclose(t);

Walter Roberson 2024-6-25

Possibly the other side needs \r\n ?

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Answer 1

Aneela 2024-7-24

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https://ww2.mathworks.cn/matlabcentral/answers/2131471-matlab-telnet-to-remote-machine-not-successful#answer_1489781

在 MATLAB Online 中打开

Hi Siva,

I am able to create a server which accepts TCP connections using the following code in MATLAB R2023b.

tCmd = tcpclient("127.0.0.1", 5023); 
command = 'ls\n';   
write(tCmd, uint8(command));   
pause(1); 
if tCmd.NumBytesAvailable > 0 
    response = read(tCmd, tCmd.NumBytesAvailable, "uint8"); 
    disp(char(response'));   
else 
    disp('No response received from the server.'); 
end 
clear tCmd;