I'm using Codesys SP18 Patch 2 for a Control RTE Project on a Windows 10 system. I try to move a 3 axis system using G-Code. Therefore, I wrote a pretty simple script (.cnc file in the local file system).
LET #lrXpos : LREAL := 2
LET #lrYpos : LREAL := 2
LET #lrZpos : LREAL := 2
N0 G90
N10 G1 X#lrXpos Y#lrYpos Z#lrZpos F100 E15
In my code I implemented the SMC_ReadNCFile2 and the SMC_NCInterpreter of the SM3_CNC library. The ReadNCFile functionblock is working well. The file is read sucessfully and no error occured, but when the NCInterpreter try to handle the NC file the Error SMC_IPR_BUFFER_TOO_SMALL appears in the function block. There is no other function in between. The input parameter nSizeOutQueue is 1000. I also tried to increase it to 10 000, but it makes no difference. Can someone please help me to understand the error and how to fix it?
Thanks in advance.
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I guess you have information about the subject. I'm getting a similar mistake. I get the error in the "SMC_INTERPOLATOR" block. The error is this; "SMC_CNC_INTERNAL_ERROR".
I'm reading a file with a .cnc extension with 50 thousand lines. I use "SMC_Readncfile2" and "SMC_NCINTERPETER" blocks in the reading section. There is no problem with these blocks.
Buffer I use the 80000 value as you. Buffer is defined in sufficient capacity for the file I am trying to open to you.
Why can I get this "Internal" error? Thank you.
Last edit: ByCNC 2023-02-23
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the error probably occurs because you have more than 2^15-1 (32767) elements in your CNC queue.
It is not recommended to use such a huge queue size. Even with g-code files that are in the millions of lines, you do not need to keep the entire path in memory. In your case, a queue size of 100 SMC_GeoInfo elements should be more than enough.
Best regards,
Georg
👍
1
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Thank you very much for your quick response. I've been spending time for this problem for days. I understand the answer, but although it varies according to the work to be done in the project, multi -line G code files are requested to run.
For example, I need to run a 50000 -line code and the size of this file corresponds to 1.5 million byte. Do you have the idea how to do this, how to read big files.
Thank you.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hello,
I'm using Codesys SP18 Patch 2 for a Control RTE Project on a Windows 10 system. I try to move a 3 axis system using G-Code. Therefore, I wrote a pretty simple script (.cnc file in the local file system).
LET #lrXpos : LREAL := 2
LET #lrYpos : LREAL := 2
LET #lrZpos : LREAL := 2
N0 G90
N10 G1 X#lrXpos Y#lrYpos Z#lrZpos F100 E15
In my code I implemented the SMC_ReadNCFile2 and the SMC_NCInterpreter of the SM3_CNC library. The ReadNCFile functionblock is working well. The file is read sucessfully and no error occured, but when the NCInterpreter try to handle the NC file the Error SMC_IPR_BUFFER_TOO_SMALL appears in the function block. There is no other function in between. The input parameter nSizeOutQueue is 1000. I also tried to increase it to 10 000, but it makes no difference. Can someone please help me to understand the error and how to fix it?
Thanks in advance.
more posts ...
Hi there,
you should set nSizeOutQueue to SIZEOF(aBufGeos) where aBufGeos is the array of SMC_GeoInfo objects.
Best regards,
Georg
Hello,
I guess you have information about the subject. I'm getting a similar mistake. I get the error in the "SMC_INTERPOLATOR" block. The error is this; "SMC_CNC_INTERNAL_ERROR".
I'm reading a file with a .cnc extension with 50 thousand lines. I use "SMC_Readncfile2" and "SMC_NCINTERPETER" blocks in the reading section. There is no problem with these blocks.
Buffer I use the 80000 value as you. Buffer is defined in sufficient capacity for the file I am trying to open to you.
Why can I get this "Internal" error? Thank you.
Last edit: ByCNC 2023-02-23
Dear ByCNC,
the error probably occurs because you have more than 2^15-1 (32767) elements in your CNC queue.
It is not recommended to use such a huge queue size. Even with g-code files that are in the millions of lines, you do not need to keep the entire path in memory. In your case, a queue size of 100 SMC_GeoInfo elements should be more than enough.
Best regards,
Georg
Hello dear Georg,
Thank you very much for your quick response. I've been spending time for this problem for days. I understand the answer, but although it varies according to the work to be done in the project, multi -line G code files are requested to run.
For example, I need to run a 50000 -line code and the size of this file corresponds to 1.5 million byte. Do you have the idea how to do this, how to read big files.
Thank you.
As I said, the queue sizes can be much smaller than the g-code file sizes.
I have attached an example were we have ~ 1000 lines of g-code and 50 elements in the queue.
Hello dear George,
I appreciate your help. This worked! It was very important to me. Thanks.
Enjoy your work.