Invalid settings for input port dimension of
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From: rajasekar on 29 Nov 2006 07:12 Hi nox, No the Variable "Vi" not exist in the workspace... regards rajasekar nox wrote: > > > you have a "To workspace" block outputing Vi (with a big V) if > you're > model is exactly the same as the model in the pdf file... > > So you must have a variable Vi in your workspace ! > > if you display it, what's its value ?
From: Rajasekar on 30 Nov 2006 00:43 Hi Nox, I found that,the problem lies with the connection between MUX block and State Space Block. and also the problem is with the properties of state space block. becoz when i replace the state-space block with scope, it's working fine.... Regards rajasekar nox wrote: > > > Did you put a "To workspace" block between the Mux and the > state-space block, like in the pdf ? > > if yes did you change the name of the output value by double > clicking > on the "To Workspace" block and set "Vi" in "Variable Name" ?
From: Rajasekar on 30 Nov 2006 04:32 Hi Nox, After the first block (1,1,1) at each line from first block , after the mux block the value is "3" and ?(1) before and after the state space block... there lies a problem... regards rajasekar.r nox wrote: > > > can you do just this : > > again : Format, then Port/Signal Displays, put the Signal dimension > to on (if it is already, put it to off and then to on again...) > and tell me the numbers you see : > > 1) after the first block (the 3 outputs of the generator) > 2) after the MUX > 3) before and after the state-space block > > I think after the MUX you should have a (?)1, and that's already an > error. > And that's why your model doesn't work.
From: rajasekar on 30 Nov 2006 04:39 Hi Nox, I am getting errors,when i connected Mux block (with 3 vector input to one vector output)to a state-space block i am getting the following errors like.... 1.Invalid dimensions encountered while propagating dimensions from output port 1 of 'pwmchk/Mux' to input port 1 of 'pwmchk/State-Space'. During propagation, we are attempting to unify the dimensions of the multiplexed signal with dimensions {1,1,1} to obtain the dimensions [-1]....... please suggest some possible issue's to overcome this problem. Thanks And regards rajasekar.r nox wrote: > > > can you do just this : > > again : Format, then Port/Signal Displays, put the Signal dimension > to on (if it is already, put it to off and then to on again...) > and tell me the numbers you see : > > 1) after the first block (the 3 outputs of the generator) > 2) after the MUX > 3) before and after the state-space block > > I think after the MUX you should have a (?)1, and that's already an > error. > And that's why your model doesn't work.
From: rajasekar on 30 Nov 2006 05:04
Hi Nox, I cleared all the blocks and placed only scope block after the mux block.then it's working fine. when i connected the state-space block i am getting errors....so the problem lies with the stata-space block parameters and properties only... regards rajasekar nox wrote: > > > rajasekar wrote: >> >> >> Hi Nox, >> >> I am getting errors,when i connected Mux block (with 3 vector > input >> to >> one vector output)to a state-space block >> i am getting the following errors like.... >> >> 1.Invalid dimensions encountered while propagating dimensions > from >> output port 1 of 'pwmchk/Mux' to input port 1 of >> 'pwmchk/State-Space'. During propagation, we are attempting to >> unify >> the dimensions of the multiplexed signal with dimensions {1,1,1} > to >> obtain the dimensions [-1]....... >> >> please suggest some possible issue's to overcome this problem. >> >> Thanks And regards >> rajasekar.r > > The problem is always the same : in the configuration of the > state-space block, you told me that your C matrix was eye(9), so > this > block expects a 9-dimensional vector as input I think...you only > input a 3-dimensional one ! > > if your MUX takes 3 3-dimensional vectors as input (instead of 3 > 1-dimensional vectors as you have now), it will outputs a > 9-dimensional vector, and it will work |