Constraint

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Description

Dialog Box

Set Constraint block parameters
Set number of constraints	1

• Set number of constraints: YYYY

Default properties

• always active: yes
• direct-feedthrough: no
• zero-crossing: no
• mode: no
• number/sizes of inputs: 1 / 1
• number/sizes of outputs: 1 / 1
• number/sizes of activation inputs: 0 /
• number/sizes of activation outputs: 0 /
• continuous-time state: yes
• discrete-time state: no
• name of computational function: constraint

Interfacing function

scilab/macros/scicos_blocks/misc/CONSTRAINT_f.sci

Computational function (type 10001)

      subroutine constraint(flag,nevprt,t,res,xd,x,nx,z,nz,tvec,ntvec,
     &     rpar,nrpar,ipar,nipar,u,nu,y,ny)
c     Copyright INRIA

c     Scicos block simulator
c
      double precision t,xd(*),x(*),z(*),res(*),tvec(*),rpar(*)
      double precision u(*),y(*)
      integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
      integer nipar,nu,ny

c
      common /dbcos/ idb
c     
      if (flag.eq.0) then
         do 12 i=1,nu
            res(i)=xd(i)-u(i)
            res(i+nu)=xd(i)
 12      continue
      elseif(flag.eq.1) then
         do 14 i=1,ny
            y(i)=xd(i+nu)
 14      continue
c      elseif(flag.eq.6.or.flag.eq.7) then
c         do 12 i=1,nu
c 12      continue
      endif
      end