EMA C++ RDM Usage Guide : 3 Login Domain : 3.5 Specific Usage: LDF Direct Login
 
3.5 Specific Usage: LDF Direct Login
When sending a Login Request message to an LDF Direct, the Name can be an ASCII string composed of printable characters. The Name is used for scoping some LDF Direct’s configuration. The NameType must be USER_NAME.
In the Attrib’s ElementList, SingleOpen, AllowSuspectData, and ProvidePermissionExpressions are supported. ApplicationId, Position, Password, and ProvidePermissionProfile are ignored.
The request and response message Payloads have no data.
LDF Direct supports only one login per connection.