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opc connenct

5/31/2007 5:07 AM	Rate (0)
Buzz LightYear Experienced Member Joined: 5/25/2007 Last visit: 3/20/2025 Posts: 83 Rating: (3)	Hello: I have a question about opc connection,I have 4 wincc pc(opc client) to connect 1 intouch pc(opc server),2 of 4 status of driver connection ok and every i/o fields have value,2 of 4 status of driver connection okbut every i/o fields always 0,what do I watch out best regards BazzLightYear

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5/31/2007 10:03 AM	Rate (0)
Ikkezelf Posts: 1084 Rating: (72)	Hi, Do the client have their own project and if so are these projects the same? Hardware and OS on the clients all the same? with regards, Ikkezelf
Ikkezelf Posts: 1084 Rating: (72)
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5/31/2007 10:51 AM	Rate (0)
Buzz LightYear Experienced Member Joined: 5/25/2007 Last visit: 3/20/2025 Posts: 83 Rating: (3)	Dear Ikkezelf: (1)the wincc projects are all the same (2)all hardwares of these pc are the same (3)login name/login password/workgroup are the same (4)os is WinXP Professional sp2 best regards BuzzLightYear

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5/31/2007 11:04 AM	Rate (0)
Ikkezelf Posts: 1084 Rating: (72)	Are it always the same two clients that don't have the correct value? What happens when you switch only the two on that did not have a correct value? Check the quality of the tags within the clients that don't have the proper value. What is the quality code of them? with regards, Ikkezelf
Ikkezelf Posts: 1084 Rating: (72)
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5/31/2007 12:03 PM	Rate (0)
Buzz LightYear Experienced Member Joined: 5/25/2007 Last visit: 3/20/2025 Posts: 83 Rating: (3)	Dear Ikkezelf: (1)always the 2 pc couldn't have value (2)quality code:4c -start value- best regards BuzzLightYear

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5/31/2007 12:15 PM	Rate (0)
Ikkezelf Posts: 1084 Rating: (72)	Start value means he did not retrieve the value... try using a different opc client to see if you can browse the tags and read the values from the pc's that are not working oke. At least then we now if it's a wincc (setup) problem or a pc (os) problem. I would start the Channel Diagnosis and monitor the OPC connection from startup of the wincc project, going into runtime and leave it there eg one minute. Then search through the output file (can be very large) and see if it registers the tags and what kind of messages it produces. Also a look in the wincc diagnose files (c:\program files\siemens\wincc\diagnose\) can clarify things. Please report your findings afterwards.
Ikkezelf Posts: 1084 Rating: (72)
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6/1/2007 3:46 AM	Rate (0)
Buzz LightYear Experienced Member Joined: 5/25/2007 Last visit: 3/20/2025 Posts: 83 Rating: (3)	Dear Ikkezelf: I would find the files you need later,thank you BuzzLightYear

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