UNI-T
UPO 3000E&UPO2000E Series Oscilloscope Programming Manual
:TRIG:LEV:HIGH?
query return 2.000e000
:TRIGger:SOURce
Command format:
:TRIGger:SOURce <source>
:TRIGger:SOURce?
Functional description:
Set single information source trigger, input channel(CHANnel1, CHANnel 2, CHANnel 3,
CHANnel 4
)
, external trigger( EXT, EXT5), AC Line.
Only EDGE/ PULSe / VIDeo support AC
Line, EXT and EXT5.
<source> presents information source trigger,
CHANnel<n>|EXT|EXT5|ACLine
,
<n> take value as 1, 2, 3, 4.
Return format:
Query return information source trigger { CHANnel1| CHANnel2| CHANnel3|
CHANnel4|EXT|EXT5|ACLINE}.
For example:
:TRIGger:SOUR CHAN1
set channel 1 as edge trigger
:TRIGger:SOUR?
query return CHANnel1
:TRIGger:COUPling
Command format:
:TRIGger:COUPling {DC|AC|LF|HF|NOISE}
:TRIGger:COUPling?
Functional description:
Set the coupling mode, DC, AC, LF, HF and NOISE,
except VIDeo.
Return format:
Query return coupling mode {DC|AC|LF|HF|NOISE}.
For example:
:TRIGger:COUPling AC
set edge trigger as AC
:TRIGger:COUPling?
query return AC