Simulink, data from vector representation.

Hi,

I would like to kwon how to import or introduce data in simulink, from a vector which I have got in matlab. I mean, I got tha data from a earthquake wave in a vector in matlab, which I want do is to respresent this vector in simulink, in real time in order to send the data with opc to codesys.

Thanks for your time.

Answer 1

[Fangjun Jiang]

The most common case, let's say you have a vector a=0:0.1:1.

Make it a column vector b=a'

Create a time vector to specify the time for each value, for example, t=(0:10)'

Use the "From Workspace" block, specify the data as [t b], which will give you data value 0 at time 0, value 0.1 at time t=1 second, etc.

There are other format too. Take a look at the Help document of the "From Workspace" block.

[jorge varona madrid]

Thanks mate, I had checked this, but I have been trying again with this box and finally it works. I have lost almost two ohurs due to the simulation stop time.I had just 10 seconds, and the wave didn't represent correctly. Really thanks. But when I made the sim, the wave is directly draw. I mean, for explample, It doesn't print the date in ten seconds. How can I made as the wave were in real time.

[Fangjun Jiang]

Simulation might be faster or slower than real-time depending on the model. If it is faster, you could slow it down close to real-time. See Simulink Real-Time

[jorge varona madrid]

Really thanks.