Rockwell Automation 1768-L45S Compact GuardLogix Controllers - Manual (Page 40)

40 Rockwell Automation Publication 1768-UM002C-EN-P - April 2012
Chapter 4 Communicate over Networks
Time-based Safety Network Number
If the time-based format is selected, the SNN value that is generated represents
the date and time at which the number was generated, according to the personal
computer running the configuration software.
Figure 6 - Time-based Format
Manual Safety Network Number
If the manual format is selected, the SNN represents entered values from 1…9999
decimal.
Figure 7 - Manual Entry