Rigol DS1204B Programming Manual page 91

8. :WAVeform:XORigin?
Command Format:
:WAVeform:XORigin?□[<source>]
Function:
The command queries the time from origin to start of EMS memory of specified
soucce. The <source> may be CHANnel1, CHANnel2, CHANnel3, CHANnel4 or
MATH．
Return Format:
The query returns the value of time and the unit is s.
Example:
:WAVeform:XORigin?□CHANnel2
9. :WAVeform:STARtofroll?
Command Format:
:WAVeform:STARtofroll?
Function:
The command queries the start point of roll display.
Return Format:
The query returns the coordinate of start point.
Example:
:WAVeform:STARtofroll?
10. :WAVeform:ERASeofroll?
Command Format:
:WAVeform:ERASeofroll?
Function:
The command queries the start point of roll erase.
Return Format:
The query returns the coordinate of start point.
Programming Guide for DS1000B Series
Return 2.00e-02．
Return 0.
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