[Scilab-users] Problems with "To workspace" and "From workspace"

[Michael Ungelehrt]

Dear users,

 

I have a problem with the “To workspace” respectively “From workspace” block
in Xcos.

 

I’d like to write the value of a function to workspace if the value of
another function changes its sign from + to -. A short time later I’d like
to use this value in a third function and retrieve it from workspace.

 

For that I evaluate the first function with the “NEGTOPOS_f” block and give
the output event to the “TOWS_c” block. The “TOWS_c” block is connected with
the second function and should write the value to a vaiable A in the
workspace.

The “FROMWSB” block is connected with a third function which should use the
variable that is saved before.

 

Now I have the following problem:

If I start the simulation, the “FROMWSB” says that the variable A does not
exist. So my idea was to define the variable in the variable-browser before
I start the simulation. If I do so I get an error at the “TOWS_c” block:
“Evaluation problem: value not updated from context. Protected variable
name. Please choose another variable name.”

 

Is there any solution for that problem?

 

Block parameters:

>From workspace:

Variable name:                C

Interpolation Method:                 0

Enable zero crossing:     1

Output at end:                 1

 

To workspace:

Size of buffer:                  1

Scilab variable name:     C

Inherit:                                0

 

Definition of variable C in SciNotes upfront:

C.time=0;

C.values=0;        

 

Thank you in advance!

 

 

Mit freundlichen Grüßen

Best regards,

 

Michael Ungelehrt

 

 

Logo_TC_Cham

 

Michael Ungelehrt, B.Eng.

Laboringenieur

 

THD – Technische Hochschule Deggendorf
Technologie Campus Cham

Badstraße 21

D-93413 Cham

 

Tel: +49 9971 99673-29

Fax: +49 9971 99673-69

E-Mail: michael.ungelehrt at th-deg.de

Web: www.tc-cham.th-deg.de <http://www.tc-cham.th-deg.de/> 

 

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