How can exp(x) be used in xcos?

Question

I'm trying to simulate Ke^(-θs)/(*s + 1), but xcos won't let me use exp(s) in my CLR block. Is there any way around that? Also, how can I create an xcos model, without the value for the variables, and then assign the values through the editor?

Thanks!

Answer 1

Your transfer function represents a time delay θ in series with a first order system, use the following block to approximate the delay part : https://help.scilab.org/docs/6.1.0/en_US/TIME_DELAY.html

Answer 2

Depending on what you mean with "to simulate Ke^(-θs)/(*s + 1)", you may try or use https://help.scilab.org/docs/6.1.0/en_US/scifunc_block_m.html or https://help.scilab.org/docs/6.1.0/en_US/EXPRESSION.html

The second part of your question is quite unclear as well. Usually, parameters (not variables) are defined in the context of the diagram. If by variables you mean the input signal, then you must create and use a block among possible sources (see sources palette), that will deliver an output to be branched as input to your processing block.