Query Instrument - non-numeric value

3 次查看（过去 30 天）
Tobias Kammler
Tobias Kammler 2023-6-29
评论： Harald 2023-7-4
Hi,
i'm writing data of voltage and current to an instrument with scpi commands and it works fine. Now i'm trying to print the meassured data at the power supply controller via a 'query instrument'-block to a display, but receiving the error Response from instrument was non-numeric.
These are my configurations:
Is it possible to handle the response from the instrument with the 'query instrument' block?
Or is it possible to insert MATLAB-Code to my simulink model? Because with matlab code i received the meassured data, but i dont want to do it all by script, but with the simulink model.
THANKS IN ADVANCE!

请先登录，再回答此问题。

采纳的回答

Harald
Harald 2023-6-30
Hi Tobias,
to answer the final part: you can use the MATLAB Function block to incorporate MATLAB code into Simulink models.
Best wishes,
Harald
  4 个评论
显示 2更早的评论
Tobias Kammler
Tobias Kammler 2023-7-4
unfortunately this doesnt work. i get the following error:
The 'serial' class does not support code generation.
Function 'MATLAB Function' (#24.59.77), line 5, column 16:
"serial(serialPort)"
i also tried to generate to generate the serial object, like i did before with pure matlab code outside the simulink model
serialPort = 'COM4';
serialObject = serial(serialPort);
do you have an other idea to solve the query fromm the instrument from simulink?
Harald
Harald 2023-7-4
Hi Tobias,
you need to declare all functions that are not supported for code generation but used in a MATLAB Function block as extrinsic, so e.g. also
coder.extrinsic('serial')
Keep in mind that this would open a new connection every time the block is executed. This may not be desirable.
Thus, I prefer the other approach of creating the connection in MATLAB. What problems did you run into when you tried this?
Best wishes,
Harald

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 C2000 Microcontroller Blockset 的更多信息

标签

产品


版本

R2018b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by