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v10.0.1.x for R2026a
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IO107 - Analog Output Test

This example shows you how to perform an output test with the IO107 I/O module to verify the analog functionality of an output channel.
The IO107 is a 16-bit analog module with 16 differential analog output channels.
The Simulink model used in this example features the IO107 Setup and IO107 Analog output blocks.
Table of Contents
Test Setup Prerequisites Test Setup Open Simulink Model Build, Download, and Run the Example Results by Using an Oscilloscope Additional References

Test Setup

Prerequisites

You will require the following to run this example:
  • Speedgoat real-time target machine with one IO107 I/O module installed
  • Connector cable from the I/O module to the terminal board
  • 68-pin terminal board with jumper wires
  • Oscilloscope

Test Setup

On the terminal board of the IO107 I/O module, connect Pin 1 (Analog Output 01 (-)) to the probe ground and Pin 2 (Analog Output 01 (+)) to the probe input of the oscilloscope.
The complete pin mapping of the IO107 can be found in the documentation: IO107 Pin Mapping
io107_front_connection.drawio.png

Open Simulink Model

% Open Simulink model
modelName = 'sgMdl_IO107_AnalogOutputTest';
open_system(modelName);

Build, Download, and Run the Example

To run the example, either run the following code section or click the Run on Target button in the REAL-TIME tab in the Simulink model.
% Build the Simulink model
slbuild(modelName); % this will create the real-time application file (.mldatx)
 
% Create and connect to the Speedgoat real-time target machine
tg = slrealtime;
tg.connect;
 
% Download and install the real-time application on the target machine
tg.load(modelName);
 
% Connect the Simulink model with external mode to the real-time application on the target machine
set_param(modelName, 'SimulationMode', 'external') % put model into External Mode
set_param(modelName, 'SimulationCommand', 'connect') % connect with External Mode
 
% Start the real-time application
tg.start;
 
% Wait a few seconds and then stop the real-time application on the target machine
pause(10)
tg.stop;

Results by Using an Oscilloscope

Once the real-time application runs, you should be able to see the output voltage from the IO107. The output signal is a sine wave with frequency = 15 Hz, amplitude +-9 V.

Additional References