(8.5x11) 6000 Manual Cover - Newport Corporation
(8.5x11) 6000 Manual Cover - Newport Corporation
(8.5x11) 6000 Manual Cover - Newport Corporation
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R?<br />
Read Both Channels Measurement Query<br />
Syntax: R?<br />
Parameters: None<br />
Function:<br />
This query returns the last valid measurements taken from both channels.<br />
The units of the measurements are the units defined at the time the readings<br />
were made. Because it is possible to make this query faster than measurements<br />
are actually being taken, the values returned by successive queries<br />
may be multiple reports of a single measurements.<br />
To ensure that fresh data is being read the NVDA(new valid data available) bit in<br />
the Status Byte can be checked either by issuing a serial poll or by using the<br />
*STB? command. A serial poll is recommended if the GPIB interface is being<br />
used. The NVDA bit will be 1 if the last valid measurement has not been read.<br />
The NVDA bit for a specific channel will be reset to 0 immediately after a measurement<br />
is queried from that channel and will stay 0 until a new valid reading is<br />
taken. A valid reading is a reading that would return a status of 0 using the RWS?<br />
query.<br />
Returns: , <br />
or <br />
is a floating point number in the exponential format.<br />
If two channels are running simultaneously then, both are returned separated<br />
by a comma.<br />
Related Commands: *STB?, MODE_n, MODE_n?, R_n?, RWS?, RWS_n?,<br />
UNITS_n, UNITS_n?<br />
R_n?<br />
Read Single Channel Measurement Query<br />
Syntax: R_n?<br />
where n is either A or B<br />
Parameters: None<br />
Function:<br />
This query returns the last valid measurements taken from the specified channel.<br />
The units of the measurements are the units defined at the time the reading was<br />
made. Because it is possible to make this query faster than measurements are<br />
actually being taken, the values returned by successive queries may be multiple<br />
reports of a single measurements. To ensure that fresh data is being read the<br />
NVDA(new valid data available) bit in the Status Byte can be checked either by<br />
issuing a serial poll or by using the *STB? command. A serial poll is recommended<br />
if the GPIB interface is being used. The NVDA bit will be 1 if the last<br />
valid measurement has not been read. The NVDA bit for the specified channel<br />
will be reset to 0 immediately after a measurement is queried from that channel<br />
and will stay 0 until a new valid reading is taken. A valid reading is a reading<br />
that would return a status of 0 using the RWS? query.<br />
Returns: <br />
is a floating point number in the exponential format.<br />
Related Commands: *STB?, MODE_n, MODE_n?, R?, RWS?, RWS_n?, UNITS_n,<br />
UNITS_n?<br />
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