MATLAB: How to change the decimation for all logged signals in the model from the command line in Simulink

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I would like to change the decimation for all logged signals in my model from the command line in Simulink.

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You can change the decimation for all logged signals in a model from the command line in Simulink by using the following:

%find all ports that have data logging turned on
ports=find_system('findall','on','type','port','datalogging','on');
%set the decimation for those ports
set_param(ports,'dataloggingdecimatedata','on','dataloggingdecimation',num2str(value));

Related Solutions

MATLAB: How to set the ‘Datalogging’ property for individual signals in the model from the command line in Simulink

To set the individual signal 'DataLogging' property you will need to find the line in the model corresponding to the selected signal. Then the 'DataLogging' property in the 'Srcport' object of the line needs to be set. If the model in question is the current model, and the name of the signal is 'DesiredSignal', the following code will set the 'DataLogging' property to 'on':

% First, find all of the lines in the system
Sig_handle = find_system(gcs, 'FindAll', 'on', 'type', 'line','Name','DesiredSignal');
Srcport_handle = get_param(Sig_handle,'SrcPortHandle');
set_param(Srcport_handle,'DataLogging','on');

MATLAB: How to control the signal logging of individual signals from the command line in Simulink

In order to turn logging on for a particular signal, you would have to set the "DataLogging" property of the port outputting this signal to "on". For example, assume that you want to turn logging on for a signal that is ouput by a block called "myblock" in the model "mymodel". The following example code achieves this.

bH = get_param('mymodel/myblock','handle'); 
ports = get_param(bH, 'PortHandles'); 
pH = ports.Outport; 
set_param(pH, 'DataLogging','on') 
set_param(pH,'Name','mysignal')

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Related Solutions

MATLAB: How to set the ‘Datalogging’ property for individual signals in the model from the command line in Simulink

MATLAB: How to control the signal logging of individual signals from the command line in Simulink

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