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GUI mit DAQ

 

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Beiträge: 3
Anmeldedatum: 28.08.19
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     Beitrag Verfasst am: 18.12.2020, 12:16     Titel: GUI mit DAQ
  Antworten mit Zitat      
Hallo goMatlab-Mitglieder,

ich habe die Matlab-Code für die Steuerung von Anlage geschrieben. Das Programm funktioniert. Die Aufgabe ist bei bestimmte Signale in Volt, die durch DAQ-System die Signale im Amper in SCPI-Befehl für Instrument sendet.

Das Code:
Code:

clear
global obj1  s


% Create a serial port object.   Laborgerät


obj1 = instrfind('Type', 'serial', 'Port', 'COM3', 'Tag', '');
%s1=Serial('<COM1','baudrate',9600,'stopbits',1,'Terminator','
%Create the serial port object if it does not exist
%otherwise use the object that was found.
if isempty(obj1)
    obj1 = serial('COM3');
else
    fclose(obj1);
    obj1 = obj1(1);
end

% Connect to instrument object, obj1.
fopen(obj1);

fprintf(obj1,'*IDN?');
 idn = fscanf(obj1)
obj1.ReadAsyncMode = 'continuous';
obj1.Timeout=45;


 fprintf(obj1,'syst:lock on');


s = daq.createSession('ni');
addAnalogInputChannel(s,'myDAQ1','ai0','Voltage');
s.DurationInSeconds = 200;




h1=addlistener(s,'DataAvailable',@plotData);

 startBackground(s);

 % Versuche
 

function plotData(src,event)
global obj1 s

      value=event.Data;
       
    % if (value >= 0.1) & (value <1.0)
         if value <=1.0
             
             
         stop(s);
           
        fprintf(obj1,'curr 0');
        stop(obj1);
       
       
        fprintf(obj1,'syst:lock off');
       
       
       
    end  
   if (value > 1.0) & (value <3.0)
       
        fprintf(obj1,'curr 1.5');
    end  
   
    if (value >= 3) & (value <7)
        fprintf(obj1,'curr 2');
    end
    if (value >= 2) & (value < 7)
        fprintf(obj1,'curr 2.5');
    end
    if (value >= 7) & (value < 8)
        fprintf(obj1,'curr 1.8');
    end
   
    if value >= 8
        fprintf(obj1,'curr 1.5');
       
    end

    plot(event.TimeStamps,event.Data);
   
   
end

 


Nächste Schritt ist GUI-Obelrfläche zu schreiben. Mein Code
Code:

function varargout = Zelle(varargin)
% ZELLE MATLAB code for Zelle.fig
%      ZELLE, by itself, creates a new ZELLE or raises the existing
%      singleton*.
%
%      H = ZELLE returns the handle to a new ZELLE or the handle to
%      the existing singleton*.
%
%      ZELLE('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in ZELLE.M with the given input arguments.
%
%      ZELLE('Property','Value',...) creates a new ZELLE or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before Zelle_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to Zelle_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help Zelle

% Last Modified by GUIDE v2.5 27-Oct-2020 20:11:20

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @Zelle_OpeningFcn, ...
                   'gui_OutputFcn',  @Zelle_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before Zelle is made visible.
function Zelle_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to Zelle (see VARARGIN)

% Choose default command line output for Zelle
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes Zelle wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = Zelle_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on button press in Start.
function Start_Callback(hObject, eventdata, handles)
% hObject    handle to Start (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
 global obj1  strom spannung

obj1 = instrfind('Type', 'serial', 'Port', 'COM3', 'Tag', '');

if isempty(obj1)
    obj1 = serial('COM3');
else
    fclose(obj1);
    obj1 = obj1(1);
end

% Connect to instrument object, obj1.
fopen(obj1);
if ~isempty(obj1)
 set( handles.Labor,'ForegroundColor','green');  
 else
    set( handles.Labor,'ForegroundColor','red');
end

% fprintf(obj1,'*IDN?');
%  idn = fscanf(obj1)
obj1.ReadAsyncMode = 'continuous';
obj1.Timeout=45;

s = daq.createSession('ni');
addAnalogInputChannel(s,'myDAQ1','ai0','Voltage');
% s=daq('ni');
% ch=addinput(s,'myDAQ1','ai0','Voltage');
if isvalid(s)
    set( handles.Sensor,'ForegroundColor','green');
else
    set( handles.Sensor,'ForegroundColor','red');
end
%s.DurationInSeconds = 120;

s.DurationInSeconds = str2double(get(handles.edit1,'String'));

fprintf(obj1,'syst:lock on');
data=str2double(get(handles.Tabelle,'Data'));
  %  data=cell2mat(get(handles.Tabelle,'Data'));
    for i=1:length(data(:,1))
        if ~isnan(data(i,1))      
       spannung(i)=data(i,1);
        strom(i)=data(i,2);
        end
    end

 h1=addlistener(s,'DataAvailable',@plotData);
% s.IsContinuous = true;
 s.startBackground();

%s.startForeground();
 %start(s);
 %startBackground(s);
 %handles.axes1=eventdata;
 
 %plot(handles.axes1,event.TimeStamps,event.Data);



function plotData(s,event)
global obj1 strom spannung
   
    n=length(spannung);
      value=event.Data;
     
   
     for i=1:n-1
        if (value < spannung (i)) && (value >spannung (i+1))
            wert=strom(i);
         fprintf(obj1,strcat('curr ',string(wert)));
        end
     
     end
end
     


   % plot(handles.axes1,event.TimeStamps,event.Data);
   
   



% --- Executes when entered data in editable cell(s) in Tabelle.
function Tabelle_CellEditCallback(hObject, eventdata, handles)
% hObject    handle to Tabelle (see GCBO)
% eventdata  structure with the following fields (see MATLAB.UI.CONTROL.TABLE)
%   Indices: row and column indices of the cell(s) edited
%   PreviousData: previous data for the cell(s) edited
%   EditData: string(s) entered by the user
%   NewData: EditData or its converted form set on the Data property. Empty if Data was not changed
%   Error: error string when failed to convert EditData to appropriate value for Data
% handles    structure with handles and user data (see GUIDATA)
hObject.ColumnEditable = [true true];
%set(hObject,'data',[0]);


function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double


% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

 


Hier kommt folgende Feler:
Zitat:

Hardware is reserved (possibly by an external application). Call release to unreserve the
hardware or exit the external application, and retry the operation.



Das Fehler kommt beim Befehl
s.Background();

Wo könnte das Problem sein?
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