How can I receive and display data using TCP\IP client

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Issopui
Issopui 2016-1-25
评论： Walter Roberson 2016-4-14
Hello there, I have a Simunlink model with the TCP\IP client blockset. I would like to modify the client in a way that I can display the data from the server. My project has to be in such as way that once the communication is established both end can send and receive data. Regards

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回答（2 个）

Walter Roberson
Walter Roberson 2016-1-27
Issopui
Issopui 2016-1-28
Hi Walter,
Thanks for the help. I'm sorry for my duplicated question I have deleted the other one. Actually I don't have the intrument control toolbox. That's why I have to manage with the S-function block. I have only seen a client be used to send the data only is there a way to modify it to be able to receive a data from the server? I mean as soon as there is a connection it can not only send the data but also receive it from the server. Regards,
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Issopui
Issopui 2016-4-12
编辑：Walter Roberson 2016-4-14
Hello again,
This is what I tried to do after going through some examples:
/* Outputs of the Sfunction */
static void mdlOutputs(SimStruct *Sim, int_T timed)
{
int_T itim;
InputRealPtrsType pointers = ssGetInputPortRealSignalPtrs(Sim, 0);
int_T nuSam = ssGetInputPortWidth(Sim, 0);
// Writing the data on the output port
real_T *y = ssGetOutputPortRealSignal(Sim,0);
int_T DataIn = ssGetOutputPortWidth(Sim, 0);
int_T myMessage = ssGetOutputPortWidth(Sim, 0);
int_T fp = ssGetOutputPortWidth(Sim, 0);
for (int i = 0; i < DataIn/sizeof(float); i++){
y[i]= myMessage.fp[i];
}
The error message now read:
Building with 'Microsoft Windows SDK 7.1 (C++)'.
Error using mex
client64sr.cpp
C:\Users\MfeIss\Documents\Simp_Client\client64sr.cpp(109) : warning
C4267: 'argument' : conversion from 'size_t' to 'int', possible loss of
data
C:\Users\MfeIss\Documents\Simp_Client\client64sr.cpp(229) : error C2228:
left of '.fp' must have class/struct/union
type is 'int_T'
Pleease guys any help will be appreciated.
Many thanks
Walter Roberson
Walter Roberson 2016-4-14
Why are you taking the output port width of the same thing multiple times? If you had varied the 0 to something else I might have understood.
You made myMessage a number which is just the width of some port, but you are trying to access a "fp" field of that width. Perhaps you need another ssGetOutputPortRealSignal or something similar?

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