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OPC server - client

Created by: ahmedmae94 at: 3/8/2009 12:36 PM (5 Replies)

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3/8/2009 12:36 PM	Rate (0)
ahmedmae94 Posts: 103 Rating: (11)	how are you all, the attachment picture copied from this link https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&objId=25677751&objAction=csOpen&lang=en&siteid=cseus&aktprim=0&extranet=standard&viewreg=WW in this link i read how to Configuring the WinCC flexible OPC server & Configuration of the WinCC flexible OPC client my first question , Have i to make my software of WINCCFLEXIBLE twice , the first one for opc server , the second one for opc client , if the answer is YES,do you see it's tired for the programmer ? my second question , can i use one PC for OPC server & OPC client together instead of 2 Pcs ? if the answer is YES , what protocol should i use between this PC & PLCin this case (ethernet , profibus , ....)? Attachment OPC CONFIG.jpg (279 Downloads)
ahmedmae94 Posts: 103 Rating: (11)	Last edited by: ahmedmae94 at: 3/8/2009 1:16 PM Last edited by: ahmedmae94 at: 3/8/2009 12:48 PM Last edited by: ahmedmae94 at: 3/8/2009 12:46 PM Last edited by: ahmedmae94 at: 3/8/2009 12:43 PM Last edited by: ahmedmae94 at: 3/8/2009 12:40 PM Last edited by: ahmedmae94 at: 3/8/2009 12:38 PM
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3/9/2009 1:49 PM	Rate (1)
J_Bell Posts: 5822 Rating: (412)	Hello, please excuse me but I am a bit astonished to find such a specific question about Win CC flexible in the communication forum, but I will try to answer it as far as my knowledge leads me. To answer your first question I would like to ask you another question... what do you want to do? This is a very important question because if you answer that you only want to collect the data provided by the WinCC flexible’s OPC Server I would have to answer to you that you do not need a second WinCC flexible installation. This would than be handled by any OLE or DCOM capable PC Application. If you answer that you want to use the second PC as a SCADA like the first PC with WinCC flexible you need another WinCC flexible, no doubt. Now the point is up to you. To answer your second question I would say that you surely may use the OPC Server and Client on the same PC. You would even save the time spend on configuring DCOM. Within one PC you only use COM, which is much easier to handle. But be aware you may only use one WinCC flexible at your PC... and please, do not use VM Ware or Virtual PC or something like it... because than you need DCOM again. I hope I could answer your questions. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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3/10/2009 11:47 AM	Rate (0)
ahmedmae94 Posts: 103 Rating: (11)	first , I want to thank you very much for your politly, you answer my questions clearly . in my case i have one PC (WINCCFLEXIBLE) , PLC (S7-300), I will connect between them by profibus . I understand what you said to me , just my question now is, how to adjust COM ??? thank you alot
ahmedmae94 Posts: 103 Rating: (11)
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3/10/2009 2:17 PM	Rate (1)
The Body Gold Member Joined: 5/13/2008 Last visit: 12/18/2019 Posts: 836 Rating: (71)	Hi ahmedmae94, I'm a bit confused about the assembly you like to get it started. If you use a S7-300 and a PC with WinCC flexible, wired by profibus, then there is no need for OPC. If you like to connect another application (e.g. Excel) to WinCC flexible, you can use OPC. If both is running on the same machine, you do it by COM (as J_Bell already told you). COM doesn't need any further adjustments, unlike DCOM. In that case, WinCC flexible would be an OPC-Server and Excel the OPC-Client. A more detailed description can be found here: http://support.automation.siemens.com/WW/view/en/18657078
	mfG / Best regards Roland
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3/10/2009 4:32 PM	Rate (1)
J_Bell Posts: 5822 Rating: (412)	Hello, Roland is right, COM does not require any settings at all, it runs as soon as Windows is up and running. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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3/15/2009 8:22 AM	Rate (0)
ahmedmae94 Posts: 103 Rating: (11)	thank you for your response
ahmedmae94 Posts: 103 Rating: (11)
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