Kết nối MATLAB với AC500 PM573 qua giao thức Modbus TCP/IP

[tranqu]

update lai thong tin la minh da truyen va nhan dc du lieu giua matlab va PLC qua UDP. Ben Codesys minh sun dung 'ETH_UDP_STD_REC' va 'ETH_UDP_STD_SEND', du lieu co the duoc dinh dang o LINT hoac LREAL.
ben matlab minh ko xai simulink ma su dung matlab binh thuong, code la:

%% ket noi AC500 voi Matlab qua UDP/IP %%
%------ ------------------------- -------------%
%------ VD 25,5° in Matlab -> 255 in PLC --------------%




clear all
clc


host = '192.168.0.11'; %IP cua MATLAB (Laptop)
port_m = 9091; % Port cua MATLAB
port_PLC = 9090; % Port cua PLC
IP_PLC = '192.168.0.10'; %IP cua AC500 PM573

UDP = udp(IP_PLC, port_PLC,'LocalPort',9091);
%set(UDP, 'InputBufferSize', 8);
%set(UDP,'Timeout',0.016);
%set(UDP,'TimerPeriod',1000);
%UDP.ByteOrder='BigEndian';
%UDP.DatagramTerminateMode = 'off';

n=8;

try
if ~strcmp(UDP.Status,'open')
fopen(UDP);

nhietdo_phong = 10 + 1;
nhietdo_vao = 10 - 1;
Data_recv = [10*nhietdo_phong 10*nhietdo_vao];
fwrite(UDP, Data_recv,'double');


data_send = fread(UDP,n); % voi LINT format tu PLC, gia tri nhan duoc la 1 vecto
[temperatur] = data_lesen(data_send); % vi ko doc truc tiep duoc nen minh viet 1 function (data_lesen) de chuyen du lieu
% dang array ve dang so.
%%%%%%%function%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% function[temperatur] = data_lesen(data_send)
%
%
% if data_send(6,1)==255 && data_send(7,1)==255
%
% temperatur1 = data_send(8,1)-256; % wenn -256 < Ergebnis < 0
%
% elseif data_send(6,1)==255 && data_send(7,1)~=255
%
% temperatur1 = -256 - (256-data_send(8,1)); % wenn Ergebnis < -256
%
% end
%
% if data_send(2,1)==0 && data_send(7,1)>0
%
% temperatur1 = data_send(8,1)+ data_send(7,1)*256; % wenn Ergebnis > 256
%
% elseif data_send(2,1)==0 && data_send(7,1)~=1
%
% temperatur1 = data_send(8,1); % wenn 0 < ergebnis < 256, denn wird in data_send(8,1) gelesen.
% end
% temperatur = temperatur1/10;
% end
fclose(UDP);
end
disp('UDP/IP Open');
catch err
disp('Error: Can''t open UDP/IP');
end