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Commands Listed in Alphabetical Order
Arguments
EDGe is the defa
ult trigger. A trigger event occurs when a signal passes through
a specified voltage level in a specified direction and is controlled by the
TRIGger:A:EDGE? commands.
LOGic specifies that a trigger occurs when specified conditions are met and is
controlledbytheTRIGger:A:LOGIc? commands. This trigger type is equivalent
to the logic trigger and to the setup and hold trigger found in the user interface.
PULSe specifies that a trigger occurs when a specified pulse is found and is
controlledbytheTRIGger:A:PULse? commands. This trigger type is equivalent
to the p ulse width, runt, a nd rise/fall time triggers found in the user interface.
BUS specifies that a trigger occurs when a communications signal is found.
Supports CAN, I
2
C, SPI, and RS-232 communications signals.
VIDeo specifies that the trigger occurs when a video signal is found.
Examples
TRIGGER:A:TYPE EDGE sets the A trigger type to EDGE.
TRIGGER:A:TYPE? might return :TRIGGER:A:TYPE PUL SE indicating that the
A trigger type is a pulse trigger.
TRIGger:A:UPPerthreshold:CH<x>
Sets the upper threshold for channel <x>, where x is the channel number. Each
channel can have an independent level. Used only for runt and slew rate trigger
types.
Group
Trigger
Syntax
TRIGger:A:UPPerthr
eshold:CH<x> {<NR3>|ECL|TTL}
TRIGger:A:UPPerthreshold:C H<x>?
Arguments
<NR3> is the threshold level in volts.
ECL specifies a preset ECL high level of –1.3V.
TTL specifies a preset TTL high level o f 1.4V.
Examples
TRIGGER:A:UPPERTHRESHOLD:C H2 50E-3 sets the upper limit of the pulse
runt trigger to 50 mV for channel 2.
TRIGGER:A:UPPERTHRESHOLD:C H2? might return :TRIGGER:A:
UPPERTHRESHOLD:CH2 1.2000E-01
indicating that the upper limit of the pulse
runt trigger is set to 120 mV.
MSO4000 and DPO4000 Series Programmer Manual 2-455