Today.ini: Difference between revisions

On restart Cumulus writes a backup of today.ini (and some of the other Cumulus files) into the [[Backup_folder|backup folder]] found below the folder with the cumulus.exe (or CumulusMX.exe). With Cumulus stopped, you can copy the today.ini file in either a restart backup, or a daily backup (see [[#Where are the files stored?]]), in conjuction with copying the other files in that backup folder into their original folders (mostly [[data_folder|data sub-folder]]) overwriting the files in those destinations. When you restart Cumulus, the tracking will begin again as if the time has been rewound back to the date those copied files were last updated. This rewinding works best if historic data can be read from your weather station. One example of when this might be useful is if you spot a rogue value very soon after it has been recorded, the rewinding often brings in correct data for the recent period. Another example is if your computer on rebooting initially shows the wrong time and so Cumulus records some data against that wrong time; a rewind can eliminate the wrongly timed records and replace them with records timed correctly.

You are strongly advised not to stop/restart Cumulus close to either midnight or your rollover time. Steve Loft defines "close" in this context as within whatever time you have set as interval between logging of spot values (e.g. 10 or 30 minutes). The potential problems were significantly worse for earlier versions of Cumulus 1, but restart problems have been reduced in newer builds of C1. In general, MX is more tolerant over restart timings, but the way its code works you will encounter more problems with accuracy of output if MX is stopped for more than the few minutes needed for an upgrade (or computer reboot).