Fluke ScopeMeter 190 Series, Programming Reference Manual

Page: 116 / 120

Page C.3
<y_at_0> = <float>
This field contains the value corresponding
with the lowest horizontal grid line.
<x_at_0> = <float>
This field contains the value corresponding
with the most left vertical grid line.
Value = 0E0 (not used).
<date_stamp> = <year><month><day>
<year> = <digit><digit><digit><digit>
<month>= <digit><digit>
<day> = <digit><digit>
<time_stamp> = <hours><minutes><seconds>
<hours>= <digit><digit>
<minutes>= <digit><digit>
<seconds>= <digit><digit>
<check_sum> = <binary_character>
One binary character which represents the sum
of all the <binary_character>’s sent after
the <block_length> and before the <check_sum>.
and where
<trace_samples>= #0<block_header><block_length><sample_format>
<overload><underload><invalid><nbr_of_samples>
<samples><check_sum><cr>
<block_header>= <binary_character> which is 129.
<block_length>= <unsigned_long>
This (4-bytes) value gives the number of bytes
that are transmitted after the <block_length>
and before the <check_sum>.
<sample_format>= <binary_character>
This byte specifies the format of the samples.
The highest bit (7) defines whether the
samples should be interpreted as signed (1)
or unsigned values (0).
Bit numbers 6, 5, and 4 in <sample_format>
define the sample combination (bits 654):
000 = normal trace samples
100 = Min/Max trace samples
110 = Min/Max/Average trace samples
111 = Min=Max trace samples
Min=Max=Average trace samples
[Average & Display Glitches No]
<nbr_of_samples> specifies the number of
sample pairs in this case.
The bits 0 to 2 in <sample_format> define the
number of <binary_character>’s in which a
sample value is represented.