Larson Davis System 824, Technical Reference Manual

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9/29/09 A -9
Remote Control Commands (Detailed)
Mode Commands
Format for the Mode Commands is:
Command Description
M1 Power On (clear error message list and reset display functions to “–a” windows)
M2 Power Off (cease sending further commands or the 824 will power back on)
M3 Run (begin accumulating data)
M4 Stop (stop accumulating data)
M4,1 Pause/Continue or View/End view (if stopped) (See R152 through R154)
M5 View (view the current Sound Pressure Level without accumulating data)
M6 or
M6,0 Set standard mark
M6,1 Set mark 1, Aircraft
M6,2 Set mark 2, Automobile
M6,3 Set mark 3, Truck
M6,4 Set mark 4, Train
M6,5 Set mark 5, Animal
M7 or
M7,0 Reset current data (instantly resets the current data set)
M7,1 Overall Reset (Resets the Current and Overall SLM function and histories [synonym
of S1,1 Reset-All command]
M7,2 Purge All (Resets ALL data and erases ALL data files [To purge, error checking
must be on; the check character for M7,2 is “b”; therefore, the complete purge com-
mand is M7,2b (case is significant!)]
M 8 Reset Histories Only (clears all histories and places a RESET record in the run log)