System:expand; System:gamount; System:gpib - Rigol DS4000E Series Programming Manual

Chapter 2 Command System

:SYSTem:EXPand

Syntax
:SYSTem:EXPand <exp>
:SYSTem:EXPand?
Description
Sets or queries the vertical reference.
Parameter
Name Type
<exp> Discrete
Remarks
CENTer: when the vertical scale of the channel is modified, the waveform of the corresponding

channel will be zoomed in or out vertically relative to the screen center.
GROund: when the vertical scale of the channel is modified, the waveform of the corresponding

channel will be zoomed in or out vertically relative to the ground level.
Return Format
The query returns CENT or GRO.

:SYSTem:GAMount?

Syntax
:SYSTem:GAMount?
Description
Queries the number of grids on the screen horizontally.
Return Format
For this oscilloscope, the query always returns 14.

:SYSTem:GPIB

Syntax
:SYSTem:GPIB <adr>
:SYSTem:GPIB?
Description
Sets or queries the GPIB address.
Parameter
Name Type
<adr> Integer
Return Format
The query returns an integer between 1 and 30.
DS4000E Programming Guide
Range
{CENTer|GROund}
Range
1 to 30
RIGOL
Default
GROund
Default
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