Rigol DG800 Series - Page 73

Chapter 2 Command System RIGOL
DG800 Programming Guide 2-59
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{NORMal|INVerted}
Discrete
NORMal|INVerted
NORMal
Remarks
 When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.
 The gate polarity is only applicable to the gated burst mode (
[:SOURce[<n>]]:BURSt:MODE). The
signal generator controls the burst output according to the level of the external signal (i.g. the gated
signal) input from the rear-panel [Sync/Ext Mod/Trig/FSK] connector of the corresponding
channel.
 Positive (NORMal): the gated signal is true (false) when the external signal level is high (low); Negative
(INVerted): the gated signal is true (false) when the external signal level is low (high).
 When the gated signal is "True", the generator outputs a continuous waveform. When the gated signal
is "False", the generator first completes the output of the current period and then stops. For Noise
waveform, the output will stop immediately once the gated signal becomes "False".
Return Format
The query returns NORM or INV.
Example
:SOUR1:BURS:GATE:POL NORM /*Sets the gate polarity of the gated burst of CH1 to NORM.*/
:SOUR1:BURS:GATE:POL? /*Queries the gate polarity of the gated burst of CH1 and the query
returns NORM.*/
[:SOURce[<n>]]:BURSt:INTernal:PERiod
Syntax
[:SOURce[<n>]]:BURSt:INTernal:PERiod {<period>|MINimum|MAXimum}
[:SOURce[<n>]]:BURSt:INTernal:PERiod? [MINimum|MAXimum]
Description
Sets the internal burst period of the N cycle burst of the specified channel.
Queries the internal burst period of the N cycle burst of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
<period>
Real
2.0166 μs to 500 s
10 ms
Remarks
 When [:SOURce[<n>]] or [<n>] is omitted, the system sets the related parameters of CH1 by default.
 The burst period is only applicable to the N cycle burst mode (
[:SOURce[<n>]]:BURSt:MODE) for the
internal trigger and is defined as the time from the start of a burst to the start of the next burst.
 The relations among the burst period, waveform period (the period of the burst function (e.g. Sine and
Square)), and the number of cycles of bursts is as follows:
2us+×
≥
cyclewaveformburst
NPP
Wherein,
burst
P
——burst period;
waveform
P
——waveform period;
cycle
N
——number of cycles.
 If the specified burst period is too small, the signal generator will increase it automatically to ensure
the output of the specified number of cycles.