The command sets or queries trigger source.
Explanations:
TRIGger:SOURce□{IMMediate|EXTernal|BUS}: Select the trigger source.
TRIGger:SOURce?: Query the trigger source.
The possible return value is IMMediate, EXTernal and BUS, IMMediate denotes
trigger signal will be generated immediately; EXTernal denotes external trigger
source on rear panel will be used; BUS (software trigger) denotes the command
―*TRG‖ will be trigger source. Before sending the command ―*TRG‖, the
instrument must be the state of ―wait trigger‖.
After the trigger source is selected, the instrument must be set as ―wait trigger‖
mode, or the trigger source will be accepted.
The command ―CONFigure‖ or ―MEASure?‖ can be used to set trigger source as
immediately mode (IMM).
It is suggested that the command ―SENSe:<function>:RANGe:AUTO□OFF‖
should be used to disable autorange function, the command ―SENSe:<function>:
RANGe‖, ―CONFigure‖ or ―MEASure?‖ be uesd to set range by manual.
Return Format:
The query returns current trigger source.
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