OPC URL features

Hello
Can any one please explain this OPC URL (what each part mean?)
opc://localhost/Tunneller:ric841x1si.da.1\\\ric841x1\66TI1450
I do not understand these parts “Tunneller:ric841x1si.da.1” and “\\\ric841x1\66TI1450”
Please let we know if there is a link for more advance tricks for OPC URL
I am getting this error:
1/22/2007 10:41:34 AM Err Code: -1967259646 SourceataSocket Connect.vi
Error: Parsing URL.<ERR> Addtl Txt: Multiple OPC Items Monitor
Let me know if you know what error is this
Thank you
Amit

Hello Doug
First of all, thank you for your information on OPC URL.
Actually, this is first time I am using OPC with LabView, and I am looking older application which has OPC URL. I wanted to understand how OPC URL address works.
By reading some document I understand some part of the URL but not fully.
You have explained very clearly what I am looking for.
"Tunneller:ric841x1.osi.da.1" is the name of the OPC server ( I am confuse with colon ‘:’ and point ‘.’)
“ric841x1" is most likely a folder within this particular process for organizational purposes
"66TI1450" would be an individual register or data item
Again great help, thank you for that.
Amit

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Storing OPC URL link as String

Hello
I am having trouble with reading OPC URL link in correct format form the System.ini file. (LabView 8.2)
I am able to read the OPC URL link from System.ini file and save it as a string, but in the OPC URL link it contain some back slash and that is where the problem start.
I have old EXE file created in LabView, which read the same OPC URL and able to communicate. I cannot provide this EXE file because it is very big.
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Thank you,
Attachments:
OPC test.vi ‏45 KB
System.ini ‏1 KB

Hello Guys
Thank to Rolf, Ravens and GerdW
As Rolf point out that read raw string flag on the Read key.vi takes care of all escape sequence problem. Also do the same thing when you use the Write Key.vi. So if the Value type is String then this flag comes up, but if not careful we can easily miss that.
Here is the some more info.
read raw string? Specifies whether the string was written without escaping unprintable and backslash (\) characters. If FALSE (default), the VI replaces any unprintable characters in the string, such as <ESC>, with a backslash and two Hex characters (\xx). If TRUE, the VI does not convert the unprintable characters in the string.
write raw string? specifies whether to write the string without escaping unprintable and backslash (\) characters. If FALSE (default), the VI converts any backslashes (\) to double backslashes (\\) and replaces any remaining unprintable characters in the string, such as <ESC>, with a backslash and two Hex characters (\xx). If TRUE, the VI does not convert the unprintable characters in the string.
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i want to tell my knowledge that i know about your questions.
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Edited by: FuatOZERGIL on 06.Ara.2012 08:14

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Regards,
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Forget step：
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Can I write arrays of strings to OPC server?

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OPC URL features

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