Instructions
Chapter 4 Command System for VSA Mode  RIGOL 
RSA3000E Programming Guide  4-71 
:TRIGger[:SEQuence]:SOURce 
Syntax 
:TRIGger[:SEQuence]:SOURce EXTernal1|EXTernal2|IMMediate|FMT|POWer 
:TRIGger[:SEQuence]:SOURce?
Description 
Sets the trigger source. 
Queries the trigger source. 
Parameter 
Name 
Type 
Range 
Default 
-- 
Keyword 
EXTernal1|EXTernal2|IMMediate|FMT|POWer 
IMMediate 
Remarks
EXTernal1: indicates External Trigger 1. 
EXTernal2: indicates External Trigger 2. 
IMMediate: indicates the free-run trigger. 
FMT: indicates the frequency mask trigger. 
POWer: indicates IF Power Trigger. 
Return Format
The query returns EXT1, EXT2, IMM, FMT, or POW. 
Example
The following command sets the trigger source to free-run trigger.  
:TRIGger:SEQuence:SOURce IMMediate 
The following query returns IMM.  
:TRIGger:SEQuence:SOURce? 
:TRIGger2:MODE 
Syntax 
:TRIGger2:MODE IN|OUT|0|1 
:TRIGger2:MODE? 
Description
Sets the interface type of External Trigger 2. 
Queries the interface type of External Trigger 2. 
Parameter 
Name 
Type 
Range 
Default 
-- 
Keyword 
IN|OUT|0|1 
IN|0 
Remarks 
IN|0: indicates the input interface. 
OUT|1: indicates the output interface. 
Return Format
The query returns 0 or 1. 
Example
The following command sets External Trigger 2 to be the input interface.   










