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RUN_n
Start Single Channel Acquisition
Syntax:
RUN_n
Parameters:
None
Function:
This command initiates data acquisition on the specified channel using the
currently defined acquisition mode. In single type acquisition modes this
command will cause one reading to be acquired. In continuous type acquisi-
tion modes this command will initiate the continuous acquisition of readings.
The STOP command will terminate acquisition.
Related Commands:
STOP, STOP_n, RUN
RWS?
Read Both Channel Measurements With Status Query
Syntax:
RWS?
Parameters:
None
Function:
This query returns the last measurements taken from both channels. The
units of these measurements are the units defined at the time the readings
were made. Because it is possible to make this query faster than measure-
ments are actually being taken, the values returned by successive queries may
be multiple reports of the same measurement.
To ensure that fresh data is being read the NDA(new data available) bit in the
Status Byte can be checked either by issuing a serial poll or by using the
*STB? command. A serial poll is recommended if the GPIB interface is being
used. The NDA bit will be 1 if the last measurement has not been read. The
NDA bit for a specific channel will be reset to 0 immediately after a measure-
ment is queried from that channel and will stay 0 until a new reading is taken.
Returns:
<status>, <number>
or <status>, <status>, <number>,<number>
<status> is an integer that represents the status of the returned value. <sta-
tus> will be 0 for ok, 1 for over range, 2 for saturated and 3 for data error, and
4 for ranging.
If more than one channel is available, then the first two numbers represent the
status of CHA and CHB respectively.
<number> is a floating point number in the exponential format.
Related Commands:
*STB?, MODE_n, MODE_n?, R?, R_n?, RWS_n?
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