Specifications

RIGOL Chapter 2 Command System
2-74 M300 Programming Guide
MEASure:FREQuency?
MEASure:PERiod?
Syntax MEASure:FREQuency?
[{<range>|AUTO|MIN|MAX|DEF}[,{<resolution>|MIN|MAX|DEF}],] (@<scan_list>)
MEASure:PERiod? [{<range>|AUTO|MIN|MAX|DEF}[,{<resolution>|MIN|MAX|DEF}],]
(@<scan_list>)
Description Configure the specified channels to the frequency or period measurement functions with
the specified gate time, start a scan and read the readings.
Parameters
Name
Type
Range
Default
<range> Discrete
Can receive any numeric value or any of
{AUTO|MIN|MAX|DEF}. This parameter is
unnecessary for the frequency and period
measurements, the instrument only receives the
parameter but does not respond to it.
AUTO
<resolution> Numeric
This parameter sets the gate time. It can be any
numeric value between MIN and MAX. The final
gate time is decided by the “
Principle of setting
with greater value
”.
The standard values of the gate time:
{1ms|10ms|100ms|1s}
Wherein: MIN=1ms, MAX=1s, DEF=100ms.
100ms
<scan_list>
Scan
List
One or more channels (only for the multiplexer
channels), the rules are as follows:
(@101): channel 01 on the module in Slot1;
(@101:103): channel 01 to channel 03 on the
module in Slot1;
(@101:103,301): channel 01 to channel 03 on the
module in Slot1 and channel 01 on the module in
Slot3;
None
Explanation  These commands are equivalent to the CONFigure:FREQuency or CONFigure:PERiod
command followed by the
READ? command.
 <scan_list> overwrites the current scan list.
Return
Format
The query returns the readings in scientific notation. Multiple return values are separated
by commas.
Example MEAS:FREQ? AUTO,DEF,(@101:102)
The query returns +1.014640780E+03,+9.748052293E+02.
Related
commands
CONFigure:FREQuency
CONFigure:PERiod
READ?