1. We have discussed this is length already. NONE of the formats *IS* the NodeId. None of them is good or wrong, per se. NodeId is a structure. They are both some string *representations* of the NodeId. With QuickOPC, use the one that QuickOPC has.

2.You can strip "nsu=http://opcfoundation.org/UA/" if you like, because it is the default namespace (OPC UA standard namespace, defined by OPC Foundation). You cannot strip any other namespace, though.

3. "ns=0" is the default. Therefore "ns=0;i=2259" is the same as "i=2259".

See also:
- opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Late...indices%20in%20Node%20Ids.html
- opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Late...tml#OPC%20UA%20Node%20IDs.html

Hi,

When browsing the CPP UA Server (by Unified Automation), using UA Expert and when browsing and choosing the ServerStatus.State item,

UA Expert shows this NodeId: "NS0|Numeric|2259". See below.



When doing the same with our program that is based on the Quick OPC Browser we get the following NodeId:

ExpandedText = "nsu=http://opcfoundation.org/UA/ ;i=2259"

1. What is the correct NodeId, the one in UA Expert or in Quick OPC Browser?

2. Currently we strip the "nsu=http://opcfoundation.org/UA/ ;" from the NodeId and use this" "i=2259". Is this Okay?

3. Or should we use "ns=0;i=2259"? How can we know if it is "ns=0"? "ns=1"? etc...?

Thanks.

Michael