Rockwell Automation Publication 1766-UM001O-EN-P - September 2021 205
Appendix F MicroLogix 1400 Distributed Network Protocol
Maximum Error Count in Secure Authentication
This parameter is supported only in MicroLogix 1400 Series B and Series
Controllers.
This parameter is used for configuring the maximum error count.
The valid range is 0…10. Default value is 2.
HMAC Algorithm in Secure Authentication
This parameter is supported only in MicroLogix 1400 Series B and Series C
controllers.
This parameter is used for configuring the HMAC Algorithm.
• 1 = HMAC SHA-1 truncated to 4 octets (serial)
• 2 = HMAC SHA-1 truncated to 10 octets (networked)
• 3 = HMAC SHA-256 truncated to 8 octets (serial)
• 4 = HMAC SHA-256 truncated to 16 octets (networked)
The valid range is 1…4. Default value is 2.
User Info Config File Number in Secure Authentication
This parameter is supported only in MicroLogix 1400 Series B and Series C
controllers.
This file number is used to define user information Secure Authentication.
The value of this parameter is N file only. Valid range is 0, 7, 9…255. Default
value is 0.
In RSLogix 500/RSLogix Micro software, when this parameter is configured
properly, you can see a DNP3 Auth User Info Config File tree in Channel
Configuration.
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