GUI for Simulink realtime indication

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Marco Wu 2011-8-9

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Hi,

 I am using Simulink realtime workshop to control a device; and I want to know the direction of movement of that device. I understand that I can use scope to read the exact data value, but I would want to use a red light to indicate a negative direction and green light for positive direction. How I can set the gui to do that? I know how to make gui update according to the workspace value, can anyway to send values to workspace every 0.05s when I am using realtime workshop?

Thanks

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Answer 1

Fangjun Jiang 2011-8-9

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I think you have some misunderstanding. Simulink Real-Time Workshop is used to generate C code from a Simulink model. The C code then can be compiled and executed in a micro-processor. It is hard to control a hardware device directly in Simulink to achieve real-time control.

Are you doing your simulation in a Simulink model or in a MATLAB GUI? If in a Simulink model, the Scope block is used to observe a signal. There is a Gauges Blockset that provides LEDs to display Green/Red light. http://www.mathworks.com/products/gauges/?s_cid=global_nav

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Marco Wu 2011-8-9

Thanks for your reply.

I use Simulink realtime workshop for data acquisition and real time control of some physical devices in my biomedical experiment.

Do you use LabVIEW? What I want is to create a simple GUI like the LabVIEW panel. I only need to have a virtual on screen red light (on when volt > 5V) which is controlled by the real time data acquisition. What I can do is to physically use a LED and connection to the digital output in my PCI card. HOWEVER, it is not a good option for me.

Fangjun Jiang 2011-8-9

Simulink is not like LabView. I don't think you can use Simulink for real-time control of your physical devices. To make the virtual LED display, the Gauges Blockset is the right tool.

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