Fluke 225C Programming Reference Manual page 113

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The waveform data that is received from the QW (Query
Waveform) query, consists of the following data.
<trace_admin>,<trace_samples>
where,
<trace_admin> = #0<block_header><block_length><trace_result>
where,
<block_header> = <binary_character>
<block_length> = <unsigned_integer>
<trace_result> = <binary_character>
If bit 0 is set (decimal value 1) the trace is a direct
result of a trace acquisition.
If bit 1 is set (decimal value 2) the trace is a result
of the TrendPlot function (recording numerical results).
If bit 2 is set (decimal value 4) either the trace itself
is an envelope trace, or an envelope trace is available.
If bit 3 is set (decimal value 8) either the trace itself
is a reference trace, or a reference trace is available.
If bit 4 is set (decimal value 16) either the trace itself
is a mathematics trace, or a mathematics trace is
available.
Note: This <trace_result> information is not available in
all instrument types/versions.
<y_unit> =
<x_unit> =
Page C.1
APPENDIX C
<y_unit><x_unit><y_divisions><x_divisions>
<y_scale><x_scale><y-step><x_step><y_zero>
<x_zero><y_resolution><x_resolution><y_at_0>
<x_at_0><date_stamp><time_stamp><check_sum>
Possible values: 144 and 0.
The value 0 is returned when also the
<trace_samples> data block is requested.
This value gives the number of bytes that
are transmitted after the <block_length>
and before the <check_sum>.
<unit>
<unit>
The <unit> is a <binary_character> which
value represents the unit:
None
<Volt>
<Ampere>
<Ohm>
<Watt>
<Farad>
<Kelvin>
<seconds>
WAVEFORM DATA
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=
=
=
=
=
=
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0
1
2
3
4
5
6
7