Configuration
3.19 Telecontrol connections
Configuration - DNP3
Configuration Manual, 11/2018, C79000-G8976-C508-01
99
– CP 1243-1 / CP 1243-8 IRC
0...65535 s
– TIM 3V-IE DNP3 / TIM 4R-IE DNP3
1...255 s
– CP 1542SP-1 IRC
0...32767 s
If you have configured a redundant connection to a partner, the parameters can be set
separately for both connection paths.
DNP3 security options
Secure Authentication
If the security function is enabled, the DNP3 master and station authenticate themselves with
a secret key, the pre-shared key.
With the help of the common pre-shared key, after the first connection establishment
between master and station, session keys are agreed that are then renewed cyclically.
Renewal of the session keys is initiated by the master. The criteria for renewing the key are
specified in the following parameters.
● Key exchange interval
● Authentication requests before key exchange
As soon as one of these conditions is met, the session key is renewed.
●
Enable DNP3 security options
Select the option if you want to use Secure Authentication.
●
Selection of the mode for key exchange. Range of values:
– Aggressive Mode
The Aggressive Mode is somewhat faster but transfers the identity unencrypted.
– Main Mode
The Main Mode is the standard mode.
Default setting: Aggressive Mode
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