1766-RM001A-EN-P MicroLogix 1400 Programmable Controllers ...

System Status File 571Data File Overwrite Protection LostAddress Data Format Range Type User Program AccessS:36/10 binary 0 or 1 status read/writeWhen clear (0), this bit indicates that at the time of the last programtransfer to the controller, protected data files in the controller were notoverwritten, or there were no protected data files in the program beingdownloaded.When set (1), this bit indicates that data has been overwritten. SeeUserProgram Transfer Requirements on page 48 for more information.SeeSetting Download File Protection on page 47 for more information.RTC YearAddress (1) Data Format Range Type User Program AccessS:37 word 1998…2097 status read only(1) This bit can only be accessed via ladder logic. It cannot be accessed via communications (such as a Messageinstruction from another device).This address is duplicated in the Real-Time Clock Function File atRTC:0.YR. SeeReal-Time Clock Function File on page 57 for moreinformation. Note: This value will not update while viewing online inRSLogix 500/RSLogix Micro/RSLogix Micro. Monitor address in functionfile to see online values.RTC MonthAddress (1) Data Format Range Type User Program AccessS:38 word 1…12 status read only(1) This bit can only be accessed via ladder logic. It cannot be accessed via communications (such as a Messageinstruction from another device).This address is duplicated in the Real-Time Clock Function File atRTC:0.MON. SeeReal-Time Clock Function File on page 57 for moreinformation. Note: This value will not update while viewing online inRSLogix 500/RSLogix Micro. Monitor address in function file to see onlinevalues.Publication 1766-RM001A-EN-P - October 2008