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Constant block doesn't accept array

조회 수: 5 (최근 30일)
madhan ravi
madhan ravi 2022년 8월 24일
답변: Jim Riggs 2022년 10월 28일
Not sure why the constant block doesn;t give the output as array. Is there any to make it possible?

채택된 답변

Paul
Paul 2022년 8월 25일
What is the value of A in the base workspace? Or whatever workspace it lives in.
Note that “A” in the From and GoTo blocks has nothing to do with A in the Constant block.
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madhan ravi
madhan ravi 2022년 8월 25일
편집: madhan ravi 2022년 8월 25일
Yes , I am aware of it, is there a way possible to use the output in the constant block? It has to take place within the SIMULINK file/model
Paul
Paul 2022년 8월 25일
In the model in the Question, what is the entry for the "Constant value" in the block parameters for the constant block that's feeding Display 1? It looks like it should be 'A', and A must be a variable defined in the base workspace or model workspace (or a mask workspace if that block is masked), and the value of A is 1. That output of 1 is coming from somewhere. But maybe this discussion isn't really relevant to what you want to do.
Do you want the constant block with 'A' to take on the value 2:3 when the simulation is running? If so, why is that second constant block needed at all. Just route the output of the 2:3 block to wherever it needs to go.

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추가 답변 (2개)

Jim Riggs
Jim Riggs 2022년 10월 28일
Yes, you can save the value to the workspace and reference it in a constant block. As @Paul points out, the label on the Goto block has nothing to do with the workspace variable name.
The "To Workspace" block saves the variable in structure "Out", and has several options for the variable format.
Below, I show a reference to variable "B" saved to the workspace as an array and as a Time Series. This option is selected in the properties of the "To Workspace" block.

Abderrahim. B
Abderrahim. B 2022년 8월 24일
Hi!
I understood that you want the output of the constant block to have the same size as the array in it.
Use the constant block from DSP System Toolbox/ Sources.
Hope this helps
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Abderrahim. B
Abderrahim. B 2022년 8월 24일
Tried at my end.. multiplied the generated const array with its transpose and it worked just fine. What kind of calculations you re doing?
madhan ravi
madhan ravi 2022년 8월 25일

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