M1 Applications Notes

Daylight Saving Time Reminders

With Autumn now upon us, it will not be long until many of us must fall back in time.  You know the drill.  You must manually adjust all the clocks in the home, office, etc.  Why not let the M1 remind you every year to adjust the clocks for daylight savings time?  All of your customers will want this feature!  This newsletter will cover examples of how to program the system to give these reminders.

Daylight savings time begins on the second  Sunday in March.  The rule below will announce “Adjust Time Tonight” and display “Set Clocks Ahead 1 Hour” on the keypad every 2 hours after 5:00pm on the Saturday before daylight savings time begins.

WHENEVER EVERY 2 HOURS
     AND TIME OF DAY IS LATER THAN 5:00PM
     AND THE MONTH IS March
     AND THE DAY(S) OF THE WEEK IS/ARE ------S
     AND THE DAY OF THE MONTH IS LATER THAN 6
     AND THE DAY OF THE MONTH IS EARLIER THAN 14
          THEN ANNOUNCE Miscellaneous 2 (vm240)         
          THEN DISPLAY “Set Clocks Ahead 1 Hour” IN Area 1 (Area1) INDEFINITELY, [*] CLEARS

Daylight savings time ends on the first Sunday in November.  The rule below will announce “Adjust Time Tonight” and display “Set Clocks Back 1 Hour” on the keypad every 2 hours after 5:00pm Saturday before daylight savings time ends.

WHENEVER EVERY 2 HOURS
     AND TIME OF DAY IS LATER THAN 5:00PM
     AND THE MONTH IS November
     AND THE DAY(S) OF THE WEEK IS/ARE ------S
     AND THE DAY OF THE MONTH IS EARLIER THAN 7
          THEN ANNOUNCE Miscellaneous 2 (vm240)         
          THEN DISPLAY “Set Clocks Back 1 Hour” IN Area 1 (Area1) INDEFINITELY, [*] CLEARS

When writing rules based on dates that do not fall on the same day every year, it is important to consider any scenario that may prevent the rule from working the way you intend, every year.  For example, the rule above will not give the reminders if the first Sunday in November also happens to be the first day of November.  This would mean that Saturday before would fall on October 31.  To account for this possibility an additional rule will be needed.

WHENEVER EVERY 2 HOURS
     AND TIME OF DAY IS LATER THAN 5:00PM
     AND THE MONTH IS October
     AND THE DAY(S) OF THE WEEK IS/ARE ------S
     AND THE DAY OF THE MONTH IS 31
          THEN ANNOUNCE Miscellaneous 2 (vm240)
          THEN DISPLAY “Set Clocks Back 1 Hour” IN Area 1 (Area1) INDEFINITELY, [*] CLEARS

Will the M1’s clocks require manual adjustment for Daylight Savings Time?
No.  The M1 can be programmed to adjust its clock for daylight savings time automatically.  This setting is found in the Global System Definitions menu (Installation Programming-Menu 9, Sub-menu 7, G05) in the keypad or in ElkRP on the Globals screen on the G01-G05 (Miscellaneous) tab.


ELK RP Tips

ElkRP Log
If you receive a warning about the log file reaching its limit, don’t panic!  This is a log ElkRP keeps for your records.  It logs what accounts were opened and connected to.  To purge the log, click the Print icon, select “ElkRP Log,” and click either Print or Preview.  Note: If you print the log, it may require lots of paper!  After printing or previewing, select “Purge the log” and click OK.  To modify the amount of disk space the log is allowed to use before warning you, click on Setup -> Options.  Adjust the slider at the bottom of the window to change the size.  This does NOT control how big the log is allowed to grow.  The log will grow indefinitely, as long as disk space is available.  This size just sets the trigger for the warnings only.

Got Questions or Ideas?
Email me at amy.strickland@elkproducts.com