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Old November 14th, 2011, 01:46 PM   #1
funfun66
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PLC software testing

Hello...

Can anyone suggest me what are different methods used for testing PLC software. also where can i find tools for PLC software testing.

regards..
funfun66
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Old November 14th, 2011, 06:23 PM   #2
KalleOlsen
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Quote:
Originally Posted by funfun66 View Post
Hello...

Can anyone suggest me what are different methods used for testing PLC software. also where can i find tools for PLC software testing.

regards..
funfun66

Simulators?
No particular PLC type in mind?


Kalle
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Old November 15th, 2011, 04:34 AM   #3
funfun66
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Hello...

I want to know apart from simulators what are other methods.
there is no particular type..i need it generally for all.
also please tell me what are the tools available for these and where can i find it.

Regards
funfun66
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Old November 15th, 2011, 05:17 AM   #4
funfun66
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Also programming language used is structured text.
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Old November 15th, 2011, 11:11 AM   #5
RussB
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Syntax checking should be part of your developer, other than that the only reliable method I know of is to have an expierenced Engineer review the code. Short of this all testing is either on a simulator or at commissioning.
May be a good project for an industrious and creative programmer.
1. In put the process sequence of operations.
2. Add BOM.
3. Read the logic.
4. Verify end results.
Sounds simple enough.
Would you need verbal or ASCII input for this and would you want the output UL and CE certified?
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Old November 15th, 2011, 11:14 AM   #6
KalleOlsen
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Quote:
Originally Posted by funfun66 View Post
Hello...

I want to know apart from simulators what are other methods.
there is no particular type..i need it generally for all.
also please tell me what are the tools available for these and where can i find it.

Regards
funfun66
Aha, you want a magic tool that analyzes whatever program you write?

Well, then we are two.


Kalle
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Old November 20th, 2011, 05:18 PM   #7
V0N_hydro
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Originally Posted by KalleOlsen View Post
Aha, you want a magic tool that analyzes whatever program you write?

Well, then we are two.


Kalle
I have written a program that analyzes the PLC program. It makes sure all IO is used in the program, and generates tables of constants, operator settings, event/alarm/trip conditions, and documents the interface between the PLC and HMI. It saves me from having to update documentation if the program has to be changed, and saves me from generating these specifics in the first place.

I recommend creating a good convention and structure for the parts of the program you want to automate the documentation or test-plan generation for as the program you write to parse your program will only be as good as you are at following the convention you create.
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Old November 21st, 2011, 05:54 AM   #8
funfun66
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hii..

thank u all for your replies and suggestions.
but can you tell me wat is difference between virtual commissioning and simulation, as i find that both are doing same job.
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