Real-Time Windows Target

Output Signals from an I/O Block

I/O driver blocks output multiple signals as a vector instead of individual channels or lines. To connect the individual channels and lines to parts of your Simulink model, you need to separate the vector with a Demux block.

After you add and configure an I/O driver block in your Simulink model, you can separate and connect the output signals from the blocks:

In the Simulink window, and from the View menu, click Show Library Browser.

The Simulink Library Browser opens.

2. Double-click Signals and Systems. From the list in the right column, click-and-drag Demux to your Simulink model.
3. Double-click the Demux block. The Block Parameters: Demux dialog box opens. Enter the number of lines leaving the Demux block. For example, if you entered three channels in the Analog Input driver block, enter 3 in the Number of outputs box.



4. Click OK.
5. Finish making connections and selecting display options.
• Connect the Analog Input block to the Demux block input.
• Connect each of the Demux block output lines to the input of other blocks.
• In the Simulink window, and from the Format menu, click Wide Nonscalar Lines, and click Signal Dimensions.

Your model will look similar to the figure shown below. In this simple example, inputs 1 and 2 are not connected, but they could be connected to other Simulink blocks.

Digital Output Block

Variations with Channel Selection