User Manual

Command Descriptions
NOTE. If Trigge
r View is active, scan mode is in effect, or the display format set to
XY, this query generates event 221 (Settings conflict) and returns 9.9E37.
NOTE. When ma
th is FFT, turned on, and used as a measurement source,
attempting to query the measurement value returns 9.9e37 and raises error 2225
(no waveform to measure).
Group
Measurement
Syntax
MEASUrement:MEAS<x>:VALue?
Returns
<NR3>
Examples
MEASUREMENT:MEAS3:VALUE might return 28.75E6 if measurement number
three is frequency.
*OPC
Generates the operation complete m essag e in the Standard Event Status Register
(SESR) when all pending commands that generate an OPC message are c omplete.
The *OPC? query places the ASCII character "1" into the output queue when all
such OPC commands are complete. The *OPC?responseisnotavailabletoread
until all pending operations finish. (See page 3-196, Status and Events.)
The *OPC command allows you to synchronize the operation of the oscilloscope
with your application program. (See page 3-7, Synchronization Methods.)
Certain oscilloscope operations can affect the
*OPC response. (See Table 3-3
on page 3-7.)
Group
Status and Error
Syntax
*OPC
*OPC?
Related Commands
BUSY?, *WAI
Examples
*OPC generates the operation complete message in the S
ESR at the completion of
all pending OPC operations.
TDS200, TDS1000/2000, TDS1000B/2000B, TDS2000C, TPS2000 Programmer 2-129