Instructions

33
Description : Set or query the trigger source for the under_am
Parameter :<source> ::= < CHANnel1 | CHANnel2 | CHANnel3 | CHANnel4>
Return : The query returns CHANnel1， CHANnel2， CHANnel3， CHANnel4
Example :TRIGger:UNDER_Am:SOURce CHANnel1 /*set trigger source
CH1*/
:TRIGger:UNDER_Am:SOURce? /* The query returns CHANnel1*/
TRIGger:UNDER_Am:POLarity
Syntax :TRIGger:UNDER_Am:POLarity <polarity>
:TRIGger:UNDER_Am:POLarity?
Description : Set or query the trigger polarity of the trigger
Parameter :<polarity> ::= < POSItive | NEGAtive>
Explanation :POSItive: Positive polarity trigger
:NEGAtive: Negative polarity trigger
Return : The query returns POSItive，NEGAtive
Example :TRIGger:UNDER_Am:POLarity POSItive /*set POSItive */
:TRIGger:UNDER_Am:POLarity?/* The query returns POSItive*/
TRIGger:UNDER_Am:WHEN
Syntax :TRIGger:UNDER_Am:WHEN <when>
:TRIGger:UNDER_Am:WHEN?
Description : Set or query the trigger condition for under_am
Parameter :<when> ::= < EQUAl| NEQUal| GREAt| LESS>
Return : The query returns EQUAl，NEQUal，GREAt，LESS
Example :TRIGger:UNDER_Am:WHEN NEQUal /*set condition NEQUal*/
:TRIGger:UNDER_Am:WHEN? /* The query returns NEQUal*/
TRIGger:UNDER_Am:TIME
Syntax :TRIGger:UNDER_Am:TIME <value>
:TRIGger:UNDER_Am:TIME?
Description : Set or query the time value of the under_am
Parameter :<value> ::= time value（unit is s，8ns-10s）
Return : The query returns the trigger level upper limit in
scientific notation.