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v10.0.1.x for R2026a
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IO206 - Digital Input

This example shows you how to use the IO206 to input digital signals and which settings you must first define.
The IO206 I/O module is a digital input module with Simulink® driver blocks.The 32 digital inputs offer a 8 V, 12 V or 24 V input range. The following variants are available: the IO206 with 24 V inputs, the IO206-12V with 12 V inputs, and the IO206-8V with 8 V inputs. You can also adjust the debounce time of the digital inputs within the specific time parameters available.
Table of Contents
Setup Prerequisites Pin Mapping/Connection Diagram/Test Setup Initialize and Open the Simulink model Model Description Build, Download, and Run the Example Check the Results Additional References

Setup

Prerequisites

You will require the following to run this example:
  • Speedgoat real-time target machine with one IO206 I/O module installed
  • Connector cable from the I/O module to the terminal board
  • 50-pin terminal board with jumper wires
  • External signal generator (Depending on I/O module, 8V/12V/24V)

Pin Mapping/Connection Diagram/Test Setup

IO206_DigitalInput_pinWiring.png
On the terminal board of the digital I/O module, connect pin 01 and pin 04 with the external signal generator and pin 33 with the ground or 0V of the signal generator.
IO206 Pin Mapping

Initialize and Open the Simulink model

% Open Simulink model
modelName = 'sgMdl_IO206_DigitalInput';
open_system(modelName);

Model Description

The Simulink model features one IO206 Setup block, one IO206 Read block and one Gain block.
The IO206 Read block read the signals from the external signal generator and outputs a 0 or 1 depending on the threshold. Please note that the Gain block just enables a better visualization of the two signals.

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
% set_param(modelName,'SimulationCommand','start') % start real-time application through Simulink toolstrip
 
% 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;
 

Check the Results

The blue signal is channel one and the green signal is channel 4 of the IO206 Read block.

Additional References