Is there a problem in InterconnectedSystem with the signal input  #621

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1. bnavigator commented on May 10, 2021

   

   bnavigator

   on May 10, 2021

   Contributor

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   I think 'f.r' can not be connections's outputlist ,because it is f_io's input.

   Correct. 'f.r' and 'c.e' are subsystem inputs. You have to connect them to the system input with inplist or create another subsystem in front of them:

   Q =(
           ('g.u','f.uf','c.uc'),
           ('s.si','g.ym'),
           ('c.e','-s.y')
   )
   
   sys=control.InterconnectedSystem((f_io,g_io,c_io,s_io),
             connections=Q,
             inputs=('sys_in'), inplist=[['f.r', 'c.e']],
             outputs=('sys_out'), outlist=['g.ym'])

   I = control.tf([1],[1])
   i_io = control.tf2io(I, name='i', inputs='ii', outputs='ir')
   
   Q2 =(
           ('g.u','f.uf','c.uc'),
           ('s.si','g.ym'),
           ('c.e','-s.y','i.ir'),
           ('f.r', 'i.ir'),
   )
   
   sys2=control.InterconnectedSystem((f_io,g_io,c_io,s_io,i_io),
             connections=Q2,
             inputs=('sys_in'), inplist=['i.ii'],
             outputs=('sys_out'), outlist=['g.ym'])
2. bnavigator

   closed this as completedon May 10, 2021
3. python-control

   locked and limited conversation to collaborators on May 10, 2021