Rigol DS1204B Programming Manual page 35

Function:
The command measures the fall time of signal from <source>. The <source>
may be CHANnel1, CHANnel2, CHANnel3 or CHANnel4.
Return Format:
The query returns 4.000e-005, and the unit is s.
15. :MEASure:PERiod?
Command Format:
:MEASure:PERiod?□[<source>]
Function:
The command measures the period of signal from <source>. The <source>
may be CHANnel1, CHANnel2, CHANnel3 or CHANnel4.
Return Format:
The query returns 1.000e-003, and the unit is s.
16. :MEASure:PWIDth?
Command Format:
:MEASure:PWIDth?□[<source>]
Function:
The command measures the positive pulse width of signal from <source>. The
<source> may be CHANnel1, CHANnel2, CHANnel3 or CHANnel4.
Return Format:
The query returns 5.000e-004, and the unit is s.
17. :MEASure:NWIDth?
Command Format:
:MEASure:NWIDth?□[<source>]
Function:
The command measures the negative pulse width of signal from <source>. The
<source> may be CHANnel1, CHANnel2, CHANnel3 or CHANnel4.
Programming Guide for DS1000B Series
RIGOL
2-27