Skip to Content

Register Login

Industry Online Support

Technical Forum

Navigation

Embed STL code in SCL language

Created by: prasad.sawantdesai at: 3/25/2013 2:23 PM (7 Replies)

Rating (0)

Thanks 3

8 Entries

3/25/2013 2:23 PM	Rate (0)
prasad.sawantdesai Posts: 55 Rating: (0)	Hello, Is it possible to embed STL code in SCL language Thanks
prasad.sawantdesai Posts: 55 Rating: (0)
Suggestion To thank Quote Answer

3/25/2013 4:49 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 2/21/2023 Posts: 6794 Rating: (1341)	prasad.sawantdesai Hello, Is it possible to embed STL code in SCL language Thanks Hello , If you mean to do part of tasks in a SCL code to be executed in STL,You have option of writing a function or a function block to do that task and then call it in SCL source code. I hope to understand your question perfectly. Best regards Hamid Hosseini
	Demo Channel on Youtube
Suggestion To thank Quote Answer
This contribution was helpful to 1 thankful Users dchartier

3/25/2013 5:32 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 3/30/2023 Posts: 1523 Rating: (518)	hdhosseini, I assume that prasad.sawantdesai was asking if you could have STL and SCL in the same file. E.G. [code] x := y + z; L #z; ITD; [/code] If I have assumed correctly then the answer is no. Source files can be either STL or SCL but not a mix of the two languages. The nearest you will get is what hdhosseini suggested in his post. Compile the STL portion into one FC/FB and call that from the FB/FC that is written in SCL.
	Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
Suggestion To thank Quote Answer
This contribution was helpful to 1 thankful Users dchartier

3/26/2013 10:57 AM	Rate (0)
prasad.sawantdesai Posts: 55 Rating: (0)	Hello Mr. hdhosseini, Thanks for the information. Its a good idea to create functions inSTL/ ladderthen call it in SCL. as Mr. Smiffy said there is no way to embed STL code in SCL. So this could be a better way. Thanks
prasad.sawantdesai Posts: 55 Rating: (0)
Suggestion To thank Quote Answer

3/26/2013 11:02 AM	Rate (0)
prasad.sawantdesai Posts: 55 Rating: (0)	Hello Smiffy, Thanks for the information.It is same what i was thinking about. Like we do in C language, We can embed assemly language part in C Code. So if it is not possible then creating function in STL/ Ladder and call it from SCL is better.. Thanks
prasad.sawantdesai Posts: 55 Rating: (0)
Suggestion To thank Quote Answer

3/26/2013 12:48 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 3/30/2023 Posts: 1523 Rating: (518)	You seem to come from the same background of 'c', 'c++' and assembler like myself. I too am used to embedding assembler in c (using the ASM construct). I came across same hurdle you have, and wanted to embed STL in SCL in similar fashion. So I understand your frustration. SCL is fine for what it is. However, it is not anywhere near as powerful or flexible as 'c'. When I first started coding in SCL it was a real eye opener in regard to just how limited you are in what you can do when compared to 'c'. But, alas, there is nothing you can do about it, it is what it is. I think the nearest you will get to your goal is to make the STL code an FC, and call this FC directly from the SCL code. So to all intents and puposes, the STL code will be "embedded" in the SCL with regard to runtime. It will just be in a seperate file in the development environment. Just bear in mind though, that to make it an FC, you cannot have any static data in the STL code (that is no instance DB), and all parameters must be provided to the FC in the call. You can make the STL an FB if you wish, but this would require and addidional instance DB, or alternatively (and better in my opinion), have a local (multi) instance definition for the STL FB in the SCL code, which will automatically add the static data for the FB into the instance DB of the SCL code FB (hope that makes sense!).
	Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
Suggestion To thank Quote Answer
This contribution was helpful to 1 thankful Users prasad.sawantdesai

3/26/2013 1:45 PM	Rate (0)
prasad.sawantdesai Posts: 55 Rating: (0)	Hello, Thank you so much for the information. Prasad
prasad.sawantdesai Posts: 55 Rating: (0)
Suggestion To thank Quote Answer

7/12/2020 10:54 AM	Rate (0)
delafrique Regular Member Joined: 6/26/2008 Last visit: 4/1/2023 Posts: 36 Rating: (2)	Namaste Prasad-ji, There is a work-round to do this. You compile your SCL block. Then open the compiled code in the STL (FBD and LAD) editor. Find the location at which you want to embed your own STL, and embed it. You obviously loose the ability to observe the code online in SCL but you can watch it in STL. Any changes will require the same process. It is cumbersome but the effect is custom STL inside a SCL matrix. You can use some easily recognizable code SCL to find the insertion spot. Think of assigning a unique number to a variable. Greetings from Africa

Suggestion To thank Quote Answer

|

Share this page:

Share this page on...

Follow us on