Stop Target Timeouts

[Graham-EGI]

When running the simulation in realtime, there are often issues when running the pTg.stop line to stop the simulation on the speedgoat.

Symptoms:

• run pTg.stop or stoptarget (when coming from the UI)
• Get Cannot stop application on target 'EGIBaseline2' : Timed-out waiting for application to stop
• Simulation is no longer transmitting data - also the current step time stops increasing if looking at the speedgoat screen/ using the UI - no data coming in anymore
• About 30 seconds later, the speedgoat ends up in the "DONE" state and the logsout variable is transferred to the host machine

Adding Simulink.sdi.setRecordData(false); didn't seem to fix the issue

[johannes-spinneken]

@Graham-EGI To stop the SDI from interfering with the file transfer (e.g. by deleting files after a run is complete), start the target with the following command:

app.tg.start('AutoImportFileLog',false,'ExportToBaseWorkspace',false,'FileLogMaxRuns',100)

[johannes-spinneken]

@Graham-EGI

This is some example code to retrieve the file and open in SDI:

% post processing script to retrieve data from the target

clearvars; close all; clc;

%% === parameters =========================================================
tgName = 'EGIBaseline';
mdlName = 'sweptCtrlMdl';
dataDir = fullfile('D:','simulink_data');

matFileName = 'simdata.mat';
% =========================================================================

%% === test Speedgoat connection ==========================================
tg = slrealtime(tgName);

try 
   tg.connect
catch ME
   fprintf('\n*** Target %s not connected. Stopping program. Check connection.\n',tgName)
   fprintf('\n*** Matlab error \n %s \n\n',ME.getReport)   
   return  
end

if tg.isConnected 
   fprintf('\n*** Target %s is connected at IP address %s. \n\n',tg.TargetSettings.name,tg.TargetSettings.address)
end

ipAddress = tg.TargetSettings.address;
% =========================================================================  

%% === copy data from target ==============================================
newFolder = fullfile(dataDir,mdlName);
mkdir(newFolder);

system(['pscp -r slrt@', ipAddress, ':/home/slrt/applications/', mdlName, '/* ' ,newFolder])
% =========================================================================  

%% === Import Logged Data into MATLAB and view in Simulation Data Inspector
importLogData(newFolder)
Simulink.sdi.view;
% =========================================================================  

%% === Export to .MAT file from Simulation Data Inspector =================
runIDs = Simulink.sdi.getAllRunIDs; % get run ID
runID = runIDs(end);

rtRun = Simulink.sdi.getRun(runID); % get data for last run
SignalData = rtRun.export;

Simulink.sdi.exportRun(runID,'to','file','filename',matFileName); % export to .mat
% =========================================================================  

[johannes-spinneken]

@Graham-EGI

The importLogData function was something Mathworks provided us early on for beta testing. I believe this is now replaced by

slrealtime.fileLogImport().

[Graham-EGI]

Have updated the system to use the logic above.

Seems to work perfectly when running from an interactive MATLAB session (matlab UI), but there are errors when running from the python server.

Python errors:

• Stopping simulation, target times out when running stoptarget from host server. Now with the addition of the Simulink.sdi.setRecordData(false); line being included, the time until the monitoring system catches the speegoat in the "DONE" state is much shorter, but the pTg.stop line still times out. There is a system in the UI/ middlecode/ host server that catches this timeout error at least.
• FOSTWINctrlPost throws errors only from python (and when it wasn't previously ran in a matlab ui with that window still open). The error is on line 30 of FOSTWINctrlPost, for the loading of the logging data. Both slrealtime.fileLogImport() and importLogData() error only when being ran from the python server.

Stop error message:

Error using slrealtime.Target/throwError
Cannot stop application on target 'EGIBaseline2': Timed-out waiting for application to stop.

Error in slrealtime.Target/stop

Error in stoptarget (line 3)
        pTg.stop

Logging err message:

Error using slrealtime.internal.Application
Enter a valid application name

Error in slrealtime.Application

Error in slrealtime.internal.logging.Importer/checkFileLogDataVersion

Error in slrealtime.internal.logging.Importer/importLocal

Error in importLogData

Error in FOSTWINctrlPost (line 30)
         importLogData(loggingDataDir)

[Graham-EGI]

@johannes-spinneken Update on the logging without using the data inspector during the simulation:

• pTg.stop in stoptarget.m still times out. Code lives in private repo.
• The updated system to scp data from speedgoat then import it via slrealtime.fileLogImport() seems as though it was working the whole time. Issues came from for some reason this script is the only one that doesn't like the slashes in path names to be / and needs them to be \\ to escape the back slash when coming from python server. All other paths with forward slashes work so it's a bit odd.
• Now using the FOSTWINctrlPost from the open directory with no issues

[Graham-EGI]

Issues resolved, timeouts related to using a constant block for the inport data and using the data inspector. Updates fixed the use of root level inport blocks in non realtime (removing the need for the constant block) and added in system to copy log data from the host machine directly and turn off the data inspector.

Closing