Larson Davis System 824, Technical Reference Manual

Page: 523 / 673

9/29/09 A -67
Time History Variables (SSA, LOG, TAL)
Brackets in the syntax indicate
optional characters and operands.
H 1 SSA, LOG,
TAL Leq (RMS Level) nnn.n dB
H 2 LOG Other level (Pk-I, Pk-II, or Lmax) nnn.n
If Other Level is set to Advc then
“___”
H 3 SSA, LOG,
TAL Run time of sample hhhhh:mm/hh:mm:ss/mm:ss.ss
H 4 SSA, LOG,
TAL HISTORY BARGRAPH ==========-----
H 5,
n SSA, LOG,
TAL Return the advanced value where ‘n’
comes from a list of available levels The optional parameter ‘n’ is
available only when advanced
time history is enabled. When
‘n’is omitted or 0, all enabled
values are transmitted
H 6,
n SSA, LOG,
TAL Return descriptive text for the
advanced level ‘n’ is an optional parameter, when
it is omitted or equals 0, the
descriptive text for all enabled
levels is returned.
H 7,
n SSA Return RTA Leq/Live data from an
advanced time history. ‘n’ is the ANSI filter number for
requesting a single filter level.
When ‘n’ is omitted or equals 0,
all filter levels are transmitted.
H
101 SSA, LOG,
TAL Same as doing an H 1 + H 5, 0
H
102 SSA, LOG,
TAL Same as doing an H 1 and H 6, 0