204 Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Appendix F MicroLogix 1400 Distributed Network Protocol
Expected Session Key Change Interval (x1 s) in Secure Authentication
This parameter is supported only in MicroLogix 1400 Series B and Series C
controllers.
This parameter is used for configuring the expected session key change
interval in seconds.
The valid range is 0…7200 (2 hrs). Default value is 1800 (30 mins).
When DNP3 Master does not change the Session Key within this time
configured, the controller invalidate the Session Key and its state for each user.
Expected Session Key Change Count in Secure Authentication
This parameter is supported only in MicroLogix 1400 Series B and Series C
controllers.
This parameter is used for configuring the expected session key change count.
The valid range is 1…10000. Default value is 2000.
Reply Timeout (x100 ms) in Secure Authentication
This parameter is supported only in MicroLogix 1400 Series B and Series C
controllers.
This parameter is used for configuring the reply timeout in 100 ms.
The valid range is 0…1200 (120 s). Default value is 20 (2 s).
15 (0x0F) N.A. N.A.
16 (0x10) critical optional
17 (0x11) critical optional
18 (0x12) critical optional
19 (0x13) N.A. N.A.
20 (0x14) critical optional
21 (0x15) critical optional
22 (0x16) - -
23 (0x17) - optional
24 (0x18) critical optional
25 (0x19) - optional
26 (0x1A) - optional
27 (0x1B) - optional
28 (0x1C) - optional
29 (0x1D) critical optional
30 (0x1E) - optional
31 (0x1F) critical optional
32 (0x20) N.A. N.A.
33 (0x21) N.A. N.A.
129 (0x81) - optional
130 (0x82) - optional
131 (0x83) N.A. N.A.
Function Codes (Continued)
Function Code Critical FCs File Number = 0 Critical FCs File Number = 0
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