Scicos Block
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Editable Scilab function block

Contents

• Editable Scilab function block
  • Palette
  • Description
  • Dialog box
  • Default properties
  • Interfacing function
  • Computational function
  • Authors

Palette

• Others - Others palette

Description

This block can realize a Scicos block written in Scilab language of type 5. The function of the block is defined interactively using dialogue boxes. The second dialogue box allows to write your own Scilab instructions. During simulation, these instructions are interpreted by Scilab; the simulation of diagrams that include these types of blocks is slower.
For more information about computational function of type 5 see the man page sci_struct in the Programming Scicos blocks section.

Dialog box

• Simulation function
  Name of the function to be generated and loaded.
  Properties : Type 'str' of size 1

• Input ports sizes
  Number and size of regular input ports.
  Properties : Type 'mat' of size [-1,2]

• Input ports type
  Set the datatype of the regular input ports.
  Properties : Type 'vec' of size -1

• Output port sizes
  Number and size of regular output ports.
  Properties : Type 'mat' of size [-1,2]

• Output ports type
  Set the datatype of the regular output ports.
  Properties : Type 'vec' of size -1

• Input event ports sizes
  a vector of ones, size of event input ports. The size of the vector gives the number of event input ports.
  Properties : Type 'vec' of size -1

• Output events ports sizes
  a vector of ones, size of event output ports. The size of the vector gives the number of of event output ports.
  Properties : Type 'vec' of size -1

• Initial continuous state
  A column vector of Initial State Conditions.
  Properties : Type 'vec' of size -1

• Initial discrete state
  A column vector Initial discrete Conditions.
  Properties : Type 'vec' of size -1

• Initial object state
  A Scilab list that defines the initial object state (oz).
  Properties : Type 'lis' of size -1

• Real parameters vector
  column vector. Any parameters used in the block can be defined here as a column vector.
  Properties : Type 'vec' of size -1

• Integer parameters vector
  column vector. Any integer parameters used in the block can be defined here as a column vector.
  Properties : Type 'vec' of size -1

• Object parameters list
  A Scilab list that defines the list of the Object parameters (opar).
  Properties : Type 'lis' of size -1

• Number of modes
  Number of Right hand side functions in the system.
  Properties : Type 'vec' of size 1

• Number of zero_crossings
  Number of zero-crossing surfaces
  Properties : Type 'vec' of size 1

• Initial firing vector
  vector. Size of this vector corresponds to the number of event outputs. The value of the i-th entry specifies the time of the preprogrammed event firing on the i-th output event port. If less than zero, no event is preprogrammed.
  Properties : Type 'vec' of size sum(%7)

• Direct feedthrough
  character "y" or "n", specifies if block has a direct input to output feedthrough.
  Properties : Type 'vec' of size 1

• Time dependence
  Time dependance : character "y" or "n", specifies if block output depends explicitly on time.
  Properties : Type 'vec' of size 1

Default properties

• always active: no
• direct-feedthrough: yes
• zero-crossing: no
• mode: no
• regular inputs:
  - port 1 : size [1,1] / type 1
  
• regular outputs:
  - port 1 : size [1,1] / type 1
  
• number/sizes of activation inputs: 0
• number/sizes of activation outputs: 0
• continuous-time state: no
• discrete-time state: no
• object discrete-time state: no
• name of computational function: scifunc

Interfacing function

• SCI/macros/scicos_blocks/Misc/scifunc_block5.sci [view code]

Computational function

• SCI/routines/scicos/scifunc.f (Type 5) [view code]

Authors

Scicos Team INRIA