Manual

Remote Control Commands and Queries
WM-RCM-E Rev D ISSUED: February 2005 255
QUERY SYNTAX
<trace> : WaveForm? <block>
<trace> : = {F1,F2,F3,F4,F5,F6,F7,F8,TA,TB,
TC,TD,M1,M2,M3,M4,C1,C2,C3,C4}. TA through TD are
for compatibility with existing software with earlier instruments.
These four mnemonics are not returned by queries.
<block> : = {DESC, TEXT, TIME, DAT1, DAT2, ALL}
If you do not give a parameter, ALL will be assumed.
RESPONSE FORMAT
<trace> : WaveForm <block>,<waveform_data_block>
T
T
I
I
P
P
:
: It may be convenient to disable the response header if the
waveform is to be restored. See the COMM_HEADER command
for further details.
AVAILABILITY
<trace> : = {C3, C4} only available on four-channel
oscilloscopes.
EXAMPLES (GPIB) The following instruction reads the block DAT1 from Memory 1 and
saves it in the file “MEM1.DAT”. The path header “M1:” is saved
together with the data.
FILE$ = “MEM1.DAT”
CMD$ = “M1:WF? DAT1”
CALL IBWRT(SCOPE%,CMD$)
CALL IBRDF(SCOPE%,FILE$)
In the following example, the entire contents of Channel 1 are saved
in the file “CHAN1.DAT”. The path header “C1:” is skipped to
ensure that the data can later be recalled into the oscilloscope.
FILE$=“CHAN1.DAT”:RD$=SPACE$(3)
CMD$=“CHDR SHORT; C1:WF?”
CALL IBWRT(SCOPE%,CMD$)
CALL IBRD(SCOPE%,RD$) Skip first 3 characters
“C1:”
CALL IBRDF(SCOPE%,FILE$) Save data in file
“CHAN1.DAT”
The following instruction illustrates how the waveform data saved in
the preceding example can be recalled into Memory 1:
FILE$ = “CHAN1.DAT”
CMD$ =“M1:”