System Commands
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WA VEFORM TRANSFER
DESCRIPTION
COMMAND SYNTAX
QUERY SYNTAX
* 4-channel oscilloscopes only
166
WAVEFORM, WF
Command/Query
A WAVEFORM? query transfers a waveform from the oscillo-
scope to the controller, whereas a WAVEFORM command
transfers a waveform from the controller to the oscilloscope.
The WAVEFORM command stores an external waveform back
into the oscilloscope’s internal memory. A waveform consists of
several distinct entities:
(1) the descriptor (DESC),
(2) the user text (TEXT),
(3) the time (TIME) descriptor,
(4) the data (DAT1) block, and optionally
(5) a second block of data (DAT2).
For further information on the structure of the waveform refer to
Section 6. In the 9424 the WAVEFORM command automatically
sets the corresponding function to the memory state.
Note: Only complete waveforms queried with "WAVEFORM?
ALL" can be restored into the oscilloscope.
The WAVEFORM? query instructs the oscilloscope to transmit a
waveform to the controller. The entities may be queried independ-
ently. If the "ALL" parameter is specified, all 4 or 5 entities are
transmitted in one block in the order enumerated above.
Note: The format of the waveform data depends on the current
settings specified by the last WAVEFORM_SETUP command, the
last COMM_ORDER command and the last COMM_FORMAT
command.
<memory>:WaveForm ALL,<waveform_data_block>
<memory>:= {MC, MD, FE~:, FF*}
<waveform_data_block> := arbitrary data block
<trace>:WaveForm? <block>
<trace>:= {EA, EB, MC, MD, FE, FF, C1, C2, C3~:, C4~}
<block>:= {DESC, TEXT, TIME, DAT1, DAT2, ALL}
Note: If no parameter is given ALL will be assumed.
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