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WinCC - OPC-XML-DA connectivity

Created by: Frank Spieldenner at: 6/29/2007 12:37 PM (3 Replies)

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6/29/2007 12:37 PM	Rate (0)
Frank Spieldenner Posts: 18 Rating: (0)	Good Morning, I'm attempting to use the OPC-XML-DA service and am running into difficulties. WinCC 6.0 SP4 HF2 WinCC Connectivity Pack 6.1 SP1 Windows Server 2003 I've followed all the examples I could find on this website and still cannot seem to connect to the OPC-XML server. I keep getting an error 401 when doing so. I've configured IIS with all the proper permissions, etc as shown in all the examples given. Does anyone have a simple, (being a simple person), quick client or code snippetto test connectivity? Thank you.
Frank Spieldenner Posts: 18 Rating: (0)
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7/1/2007 11:19 PM	Rate (0)
Calm_down Posts: 324 Rating: (30)	Dear Frank, may you tell use why you want to connect WinCC with XML? If you access a PLC you useually have S7 or any other Protocol but not a XML File.... I am a bit confused. Stay calm.
Calm_down Posts: 324 Rating: (30)
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7/4/2007 11:12 AM	Rate (0)
Frank Spieldenner Posts: 18 Rating: (0)	I want to build a desktop "widget" or "gadget", (see Google's or Yahoo's), that will show plant metrics such as KPI, etc. This type of data is something that many people in my company need to make quick business decisions. I'm currently doing it in another manner which is displayed as a "Active Desktop" item but isn't as elegant as I would like. Its funny, you would think that someone has built a OPC desktop "widget" already. OPC-XML-DA seems to be the logical choice for use as the webservice to get to and display the data. By the by, I did solve the problem I was experiencing. It was severalIIS settings with Windows Server 2003 that were not mentioned in the examples.
Frank Spieldenner Posts: 18 Rating: (0)
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7/4/2007 4:30 PM	Rate (0)
Marcio R. Santos Silver Member Joined: 12/5/2005 Last visit: 1/27/2023 Posts: 239 Rating: (9)	Hi Frank, Which settings were lacking?
	Márcio Santos www.marcioroberto.wordpress.com
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