Setup
Document No. D113-015
Page 25 of 77
Revision 1.9
AES-128 Key Wrap
AES-256 Key Wrap
Aggressive Mode
To reduce the bandwidth used for secure authentication the user can select
aggressive mode which allows the message initiator to anticipate and provide the
required authentication in the request message. Thus from a network point of
view there is a two message exchange for secure authentication compared to the
normal four message exchange for secure authentication.
Secure Optional Critical
Functions
When secure authentication is enabled there are various mandatory and optional
application functions that must be authenticated before data can be exchanged.
The optional functions can be selected in the box.
Mandatory functions, e.g. Operate, are therefore not included in the options list.
Table 3.3 – DNP3 configuration parameters
NOTE: For further information regarding the security settings refer to the
Security section.
The security configuration is shown in the figure below. The DNP3 Security configuration
window is opened by either double clicking on the module in the tree or right-clicking the
module and selecting
Configuration.
Once in the configuration window select the
DNP3
tab
at the top.
NOTE: The actual pre-shared key cannot be included in the configuration. It
can only be written to the HART 4 module when online via the Status window.
Figure 3.21 – DNP3 security configuration
