RIGOL DM3058 - Manual (Page 148)

RIGOL
Programming Guide for DM3058/DM3058E 4-55
TRIGger:SOURce? – Queries the current trigger source.
The possible return value is IMMediate, EXTernal and BUS; thereinto, IMMediate
denotes the trigger signal will be generated immediately; EXTernal denotes the
external trigger source on the rear panel will be used; BUS (software trigger)
denotes the command “*TRG” should be used when the instrument is in “waiting
trigger”.
After the trigger source is selected, the instrument must be set to “waiting
trigger” mode, or the trigger source will be refused. To set the trigger source to
IMM mode, using command CONFigure or MEASure?.
Command “SENSe:<function>:RANGe:AUTO OFF” is suggested to disable auto
range function, the command “SENSe:<function>:RANGe”, “CONFigure” or
“MEASure?” is for setting the range manually.
Return Format:
The query returns the current trigger source.