If you are not the same individual, I suggest reading that thread, especially NetWallah's probing questions, my hint-filled post and Mr. Muskrat's question-filled post. You've given us a little more data (confirmation of Big Endian, and a list of possible types), but it's still not enough for us to magically write it for you. And we don't know what separators (if any) that Simulink's Decode block might want. If nothing else, at least point us to the specific documentation for that block.

After you've studied those answers, especially the documentation linked, and come up with your own nested processing loop: if that doesn't work, please come back (as either individual in either thread) and show us your progress, and ask specific questions about what you don't understand.

You won't learn if you don't try yourself.

update: rephrase first paragraph

Quote:
Sending UDP Packets to MATLAB

Hello ,
My Background in Perl: 5 Days of Experience in using Perl

Task where I am stuck at :

1) I have a radio which outputs 10 values at a given time stamp. I need to send those 10 Values as a single UDP packet via Ethernet connected to Another Hardware managed by MATLAB/Simulink.

2) I wrote a Perl Script which gives me a string of all values like $data = '2.2,4,6,7.43,23.34,11,45576,343,22,10' ..

3) MATLAB/Simulink blocks (related to my hardware) doesn't accepts strings . It needs numbers of type (Boolean,int8,unit8,int16,uint16,int32,uint32,float,double) and have big Endian format...

4) Coming to my application , I can only receive 32 Bit Word input data stream so that decode block converts back into an array of 10 numbers... (There is no way I can know the functionality of Decode block so that I can encode in the same way in my perl script.)

Can anyone please help me in this regard as to tell how can i send those bunch of numbers in a single UDP packet.

I believe its similar to pack/unpack functions in Perl . Except the fact that Unpack is Decode block in Simulink. I have to PACK the data to either of Datatypes above mentioned with any possible delimiters
End Quote.

You'll need to describe the format of the blocks if you want our help creating a block of that format.

I need to Pack those Numbers and send it ... Unpacking part will be taken care of Decode block within Simulnk.  $message_array = pack ("(A*)*", @Numbers_to_Send); Do u think this should work?>

 #!/usr/bin/perl
#udpclient.pl

use IO::Socket;
use warnings;
use Time::HiRes qw (sleep);


my ($socket,$data);


$socket = IO::Socket::INET->new (PeerAddr   => '10.11.254.81',
                                 PeerPort  => 5005,
                                 Type      => SOCK_DGRAM,
                                 Proto      => 'udp') or die "ERROR in
+ Socket Creation : $!\n";


@tempData = (20,30,40);
$socket->send(pack ("(A*)*", @tempData));

$socket->close();
[download]

I am receiving the data as 203040 ... How cna I add a delimiter like a space to this ... so that I can receive the data as 20 30 40 ....

I already said which pack formats are needed in order to properly encode floating point numbers

I asked for the format of the packet, and you have no yet provided that. There can only be one of those.

Maybe you mean you control the decoding, so we're free to create a packet format that's composed of those number formats. If so, packing the numbers as double-precision numbers sounds most appropriate.

my $packet = pack('d>*', @nums);
[download]

 Data   Type
 2.2    Boolean
 4      int8
 6      unit8
 7.43   int16
 23.34  uint16
 11     int32
 45576  unit32
 343    float
 22     double
 10     ????
[download]

Please re-do the above table and show exactly what you need.  2.2    Boolean makes no sense to me. Neither does 7.43   int16 You will wind up with a buffer of bytes that can be sent via UDP, but the format spec must be exact and I mean to the exact bit! I presume that "unit8" means "uint8" or unsigned integer 8 bits. If you are RadioEngineer, get the terminology straight! There is a difference between ohms and volts. Same thing here.

Update: Please do not delete stuff from your post. You can use the <strike> and </strike> tags to strike-thorough content. The problem is that when folks read your post later, some answers may not make sense or there is other confusion when things magically "disappear". If you choose to update your original post with the table that I requested, I would do so with an "Edit" and "update" comment just like this. That will raise the visibility of the update rather than a reply just to me. In this particular case, I think that would be better. There are folks here literately "chomping at the bit" to help you, but your question is not a good one. If you improve the question, you will get better answers.

#!/usr/bin/perl
#udpclient.pl
use IO::Socket;
use warnings;
use Time::HiRes qw (sleep);
my ($socket,$data);
#my $in_file_name = $ARGV[0];
$in_file_name='C:\Users\Aryan Sinha\Documents\Example.csv';
open(INFILE,"<",$in_file_name) or die "Not able to open test file $!";
$socket = IO::Socket::INET->new (PeerAddr => '10.11.xxx.yy', PeerPort 
+=> 5012, Type => SOCK_DGRAM, Proto => 'udp') or die "ERROR in $socket
+->send("$data");
sleep(0.25);
$socket->close();
[download]