Mixing
How to correct “Error in default port dimensions function of S-function 'X'.function doesnt fully set the...
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
I'm a master's student and i'm studying electrical engineering - control systems.
I've been assigned (by my Supervisor professor) to simulate a feedback linearization control method so I chose a paper (attached below) and I made a simulink model for it. The problem is when I try to run the simulation, it gives the error:
Error in default port dimensions function of S-function 'FeedbackLinearization/Controller'. This function does not fully set the dimensions of output port 2
So i turned on the signal dimensions display to check for signal dimensions and check whether i've made an error or not. I see a problem for the 'e' signal. It should be a 3*1 vector that indicates error for tracking x-y-z. As you can see, output of the mux the dimension is 3 so everything is ok. the problem is when the signal reaches a block (MATLAB function or derivative) its dimension reduces down to one. I have attached my slx model so you please be kind and take a look.
I've checked both Controller Matlab func and Plant Matlab func and they are working fine.
Please help me. This is so vital for me! Thank you for your time, and consideration!
the paper:
http://uupload.ir/view/z9mg_aminfl.pdf/
the potential problem occurs here:
http://uupload.ir/files/jc3k_capture.jpg
matlab controls simulink
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
add a comment |
I'm a master's student and i'm studying electrical engineering - control systems.
I've been assigned (by my Supervisor professor) to simulate a feedback linearization control method so I chose a paper (attached below) and I made a simulink model for it. The problem is when I try to run the simulation, it gives the error:
Error in default port dimensions function of S-function 'FeedbackLinearization/Controller'. This function does not fully set the dimensions of output port 2
So i turned on the signal dimensions display to check for signal dimensions and check whether i've made an error or not. I see a problem for the 'e' signal. It should be a 3*1 vector that indicates error for tracking x-y-z. As you can see, output of the mux the dimension is 3 so everything is ok. the problem is when the signal reaches a block (MATLAB function or derivative) its dimension reduces down to one. I have attached my slx model so you please be kind and take a look.
I've checked both Controller Matlab func and Plant Matlab func and they are working fine.
Please help me. This is so vital for me! Thank you for your time, and consideration!
the paper:
http://uupload.ir/view/z9mg_aminfl.pdf/
the potential problem occurs here:
http://uupload.ir/files/jc3k_capture.jpg
matlab controls simulink
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
add a comment |
I'm a master's student and i'm studying electrical engineering - control systems.
I've been assigned (by my Supervisor professor) to simulate a feedback linearization control method so I chose a paper (attached below) and I made a simulink model for it. The problem is when I try to run the simulation, it gives the error:
Error in default port dimensions function of S-function 'FeedbackLinearization/Controller'. This function does not fully set the dimensions of output port 2
So i turned on the signal dimensions display to check for signal dimensions and check whether i've made an error or not. I see a problem for the 'e' signal. It should be a 3*1 vector that indicates error for tracking x-y-z. As you can see, output of the mux the dimension is 3 so everything is ok. the problem is when the signal reaches a block (MATLAB function or derivative) its dimension reduces down to one. I have attached my slx model so you please be kind and take a look.
I've checked both Controller Matlab func and Plant Matlab func and they are working fine.
Please help me. This is so vital for me! Thank you for your time, and consideration!
the paper:
http://uupload.ir/view/z9mg_aminfl.pdf/
the potential problem occurs here:
http://uupload.ir/files/jc3k_capture.jpg
matlab controls simulink
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
I'm a master's student and i'm studying electrical engineering - control systems.
I've been assigned (by my Supervisor professor) to simulate a feedback linearization control method so I chose a paper (attached below) and I made a simulink model for it. The problem is when I try to run the simulation, it gives the error:
Error in default port dimensions function of S-function 'FeedbackLinearization/Controller'. This function does not fully set the dimensions of output port 2
So i turned on the signal dimensions display to check for signal dimensions and check whether i've made an error or not. I see a problem for the 'e' signal. It should be a 3*1 vector that indicates error for tracking x-y-z. As you can see, output of the mux the dimension is 3 so everything is ok. the problem is when the signal reaches a block (MATLAB function or derivative) its dimension reduces down to one. I have attached my slx model so you please be kind and take a look.
I've checked both Controller Matlab func and Plant Matlab func and they are working fine.
Please help me. This is so vital for me! Thank you for your time, and consideration!
the paper:
http://uupload.ir/view/z9mg_aminfl.pdf/
the potential problem occurs here:
http://uupload.ir/files/jc3k_capture.jpg
matlab controls simulink
matlab controls simulink
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
edited Jan 3 at 14:24
Amin Plays Games
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
asked Jan 3 at 13:21
Amin Plays GamesAmin Plays Games
32
32
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
In models, when there are feedback loops, sometimes dimensions cannot be propagated successfully if the input sizes depend on the output sizes. This model may be in that category. For solving this case, you should insert a "Signal Specification" block at a location where you know the sizes. For example, at the output of mux.
https://www.mathworks.com/help/simulink/slref/signalspecification.html?s_tid=doc_ta
If you insert this block at the output of the Mux where you have circled, you can set the dimension parameter to 3 and all others as default.
answered Jan 3 at 13:44
NavanNavan
4,20111821
Darm! it worked! how should i have known?
– Amin Plays Games
Jan 3 at 14:42
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54023144%2fhow-to-correct-error-in-default-port-dimensions-function-of-s-function-x-func%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
In models, when there are feedback loops, sometimes dimensions cannot be propagated successfully if the input sizes depend on the output sizes. This model may be in that category. For solving this case, you should insert a "Signal Specification" block at a location where you know the sizes. For example, at the output of mux.
https://www.mathworks.com/help/simulink/slref/signalspecification.html?s_tid=doc_ta
If you insert this block at the output of the Mux where you have circled, you can set the dimension parameter to 3 and all others as default.
answered Jan 3 at 13:44
NavanNavan
4,20111821
Darm! it worked! how should i have known?
– Amin Plays Games
Jan 3 at 14:42
add a comment |
In models, when there are feedback loops, sometimes dimensions cannot be propagated successfully if the input sizes depend on the output sizes. This model may be in that category. For solving this case, you should insert a "Signal Specification" block at a location where you know the sizes. For example, at the output of mux.
https://www.mathworks.com/help/simulink/slref/signalspecification.html?s_tid=doc_ta
If you insert this block at the output of the Mux where you have circled, you can set the dimension parameter to 3 and all others as default.
answered Jan 3 at 13:44
NavanNavan
4,20111821
Darm! it worked! how should i have known?
– Amin Plays Games
Jan 3 at 14:42
add a comment |
In models, when there are feedback loops, sometimes dimensions cannot be propagated successfully if the input sizes depend on the output sizes. This model may be in that category. For solving this case, you should insert a "Signal Specification" block at a location where you know the sizes. For example, at the output of mux.
https://www.mathworks.com/help/simulink/slref/signalspecification.html?s_tid=doc_ta
If you insert this block at the output of the Mux where you have circled, you can set the dimension parameter to 3 and all others as default.
answered Jan 3 at 13:44
NavanNavan
4,20111821
In models, when there are feedback loops, sometimes dimensions cannot be propagated successfully if the input sizes depend on the output sizes. This model may be in that category. For solving this case, you should insert a "Signal Specification" block at a location where you know the sizes. For example, at the output of mux.
https://www.mathworks.com/help/simulink/slref/signalspecification.html?s_tid=doc_ta
If you insert this block at the output of the Mux where you have circled, you can set the dimension parameter to 3 and all others as default.
answered Jan 3 at 13:44
NavanNavan
4,20111821
answered Jan 3 at 13:44
NavanNavan
4,20111821
answered Jan 3 at 13:44
NavanNavan
4,20111821
answered Jan 3 at 13:44
NavanNavan
4,20111821
4,20111821
Darm! it worked! how should i have known?
– Amin Plays Games
Jan 3 at 14:42
add a comment |
Darm! it worked! how should i have known?
– Amin Plays Games
Jan 3 at 14:42
Darm! it worked! how should i have known?
– Amin Plays Games
Jan 3 at 14:42
Darm! it worked! how should i have known?
– Amin Plays Games
Jan 3 at 14:42
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54023144%2fhow-to-correct-error-in-default-port-dimensions-function-of-s-function-x-func%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
