How can I disable data logging for all the signals in my model?

I have enabled data logging for a lot of signals in my model, how can do this via command line functions?

Answer 1

[MathWorks Support Team]

The following code will disable signal logging for all the signals in the model ('gcs' can be replaced by the model name):

mdlsignals = find_system(gcs,'FindAll','on','LookUnderMasks','all','FollowLinks','on','type','line','SegmentType','trunk');
ph = get_param(mdlsignals,'SrcPortHandle')
for i=1: length(ph)
    set_param(ph{i},'datalogging','off')
end

[Asvin Kumar]

For those who want to copy paste this into a laaarge model...

...add a semicolon on line 2. 

My ph variable had an output of length 2077x1. :/

Answer 2

[Keqin Xu]

I made a convenient shortcut out of the following script.

% this will remove logging of any selected signals in the SimuLinkmodel

mn=inputdlg({'Input SimuLink Model Name:'},'',1,{''});

if ~isempty(mn)

if exist(mn{1})==4

mdlsignals = find_system(mn,'FindAll','on','LookUnderMasks','all','FollowLinks','on','type','line','SegmentType','trunk');

ph = get_param(mdlsignals,'SrcPortHandle');

for i=1: length(ph)

set_param(ph{i},'datalogging','off')

end

msgbox(['Any signal loggings in "',mn{1},'" have been removed.'])

else

msgbox(['"',mn{1},'" is not a valid SimuLink model.'])

end

end