Emerson Exchange 365

Hmm... remeber something that it was server 2003 who didn´t like the underscore ?????

Personally I have changed the names in upgrades ?? But you do as you wan´t

There is some information somewere ,,? found something in the release notes

"Domain Name
If your DeltaV domain name contains the underscore (_) character, a message will be displayed indicating that
some DNS server products may not support that character. However, DeltaV does support an underscore (_)
in the domain name. Therefore, you can proceed with the installation.
However, if the DeltaV system will be used with a web service (for example, DeltaV Web Server or DeltaV
Analyze), the domain name must not contain an underscore."

"Note

that Microsoft IIS does not support workstation names containing an underscore ( _ ) where a DeltaV workstation otherwise allows it."

"Workstation Name
The workstation name should be in UPPERCASE. DeltaV Workstation Configuration forces the change if
named in lowercase, however this can cause issues with Windows OS which does not recognize the name
change."

Niklas Flykt 

Klinkmann Oy

Key Account Manager safety products

nikfly@gmail.com

There is a reason you will never find an underscore in a website URL... the Microsoft IIS system (used for web services) just can't deal with it. If you would ever want to install a product on a DeltaV application station that requires the use of IIS services to serve up Internet Explorer pages, like DeltaV Analyze, I would advise you to consider another character for the node name. The naming rules for workstations were determined long before anyone anticipated enabling web services on a workstation and had we recognized this issue up front I suspect we would have disallowed underscores in the name.  Controllers are not affected by this issue.