CODESYS - the IEC 61131-3 automation software

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 Post subject: Soft PLC?
PostPosted: Thu Oct 27, 2011 2:47 am 
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Joined: Tue Aug 19, 2008 5:46 am
Posts: 35
Hi,

What is the SOFT PLC?

What is the different between PLC and Soft PLC?

Regards,
hcchin


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 Post subject: Re: Soft PLC?
PostPosted: Thu Oct 27, 2011 10:03 pm 
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Joined: Sun Apr 15, 2007 1:18 am
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Hello,

A PLC is specific hardware as Moeller, Wago, ABB, ...
A Soft PLC is a program that runs on a computer.

When you install CoDeSys V2, a Soft PLC called "CoDeSys SP PLCWinNT" is installed too.

Best regards.


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 Post subject: Re: Soft PLC?
PostPosted: Fri Oct 28, 2011 4:44 am 
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Joined: Tue Aug 19, 2008 5:46 am
Posts: 35
Hi,

Do you means we can use the "CoDeSys SP PLCWinNT" as a PLC Controller on our PC?

So We can make use our PC/Laptop to communicate/control with remote I/O?
(provided if we have the protocol master card is installed on it, like profibus, deviceNet and CanOpen)


Regards,
hcchin


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 Post subject: Re: Soft PLC?
PostPosted: Fri Oct 28, 2011 4:21 pm 
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Posts: 135
Hello

Yes of course you can use a PC as a PLC !
Generally we use an industrial PC rather than a laptop.
With communication boards, networks and input-output decentralized stations.
You can use : Profibus, CANopen, Modbus RTU, Modbus TCP, ....

But you should know two things :
1°) there are two soft PLC : CoDeSys PLC WintNT is dependent on Windows and CoDeSys SP RTE is not dependant on Windows.

2°) These are not free soft PLC. You need a licence to use. Without licence they operate in demo mode during two hours, and after they should be re-started

Best regards.


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 Post subject: Re: Soft PLC?
PostPosted: Sat Mar 17, 2012 7:35 am 
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Joined: Wed Apr 20, 2011 1:48 pm
Posts: 4
I want to use and IPC(Industrial PC) as PLC. OS may be any coomecially available. I want to buy CoDeSys RT to work with Windows OS.Where to buy and how to Buy?


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 Post subject: Re: Soft PLC?
PostPosted: Mon Mar 19, 2012 12:13 am 
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Joined: Sun Apr 15, 2007 1:18 am
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Ask to CoDeSys System Partner in your country.
You must have a look here :
http://www.3s-software.com/index.shtml? ... empartners

Best regards


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 Post subject: Re: Soft PLC?
PostPosted: Mon Mar 19, 2012 7:32 am 
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Joined: Mon Mar 12, 2012 11:25 am
Posts: 18
JAPIB wrote:
Ask to CoDeSys System Partner in your country.
You must have a look here :
http://www.3s-software.com/index.shtml? ... empartners

Best regards

Hi JAPIB,

Your post were really helpful to understand the differnec between the Soft PLC and PLC :D
I was eventully not knowing some of these facts which you talked about, but now i am clear
I just wanted to ask how may instnace of Codesys can we run on One PC as we have given option to have 4 tasks, i will be very greatful to know it :)

Thank you,


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 Post subject: Re: Soft PLC?
PostPosted: Mon May 21, 2012 8:33 am 
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Joined: Thu Jun 14, 2007 9:49 am
Posts: 974
a soft PLC same as a PLC can have multitasks in one program.
i prefer to have one program with 4 tasks, so the overview is better.

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