generic_block2

Scicos Block
fr - eng

##
Generic block (Old block)

### Contents

- Generic block (Old block)
  - Description
  - Dialog box
  - Default properties
  - Interfacing function
  - Computational function
  - Authors

### Description

The block provides a generic interfacing function but the computational function needs to be defined separately, either as a Scilab function or a Fortran or a C function. Besides the name of the function, user should specify information such as the type, whether or not the block contains a direct feed-through term. The function realising computational functions of generic blocks of a Scicos diagram must be saved along with the diagram and loaded or dynamically linked before simulation.

### Dialog box

- simulation function
  Name of the function to be loaded.
  Properties : Type 'vec' of size 1

- function type
  Type of the computational function supported by Scicos.
  Properties : Type 'vec' of size 1

- input ports sizes
  Number of regular input ports.
  Properties : Type 'vec' of size -1

- output port sizes
  Number of regular input 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

- 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

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

- number of zero_crossings
  No. of zero-crossings
  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(%6)

- 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: sinblk

### Interfacing function

- SCI/macros/scicos_blocks/Misc/generic_block2.sci [view code]

### Computational function

- SCI/routines/scicos/sinblk.f (Type 1) [view code]

### Authors

Ramine Nikoukhah INRIA