MDO3000 Programmer Manual.pdf - 第908页

Commands Listed in A lphabetical Order Conditions This command is not available for MDO 4000/B series models, or 4-channe l MDO3000 series models as they have no Aux Input connector . Group T rigger Syntax TRIGger:A:LEV …

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Commands Listed in Alphabetical Order
TRIGger:A:HO
LDoff? (Query Only)
Returns the A trigger holdoff parameters. These parameters specify the time
period during which the trigger circuitry is not looking to generate a trigger event.
Group
Trigger
Syntax
TRIGger:A:HOLDoff?
Related Commands
TRIGger:A:HOLDoff:TIMe
Examples
TRIGGER:A:HOLDOFF? might return :TRIGGER:A:HOLDOFF: TIME
900.0000E-09;BY DEFAULT
indicating that the A edge trigger holdoff time
(by default) is 900 ns.
TRIGger:A:HOLDoff:TIMe
This command specifies the A trigger holdoff time.
Group
Trigger
Syntax
TRIGger:A:HOLDoff:TIMe <NR3>
TRIGger:A:HOLDoff:TIMe?
Arguments
<NR3> is a floating point number that specifies the holdoff time in seconds. The
range is from 20 ns through 8.0 s.
Examples
TRIGGER:A:HOLDOFF:TIME ? might return :TRIGGER:A:HOLDOFFTIME
1.2000E-06
indicating that the A trigger holdoff time is set to 1.2 µs.
TRIGGER:A:HOLDOFF:TIME 10 sets the A trigger holdoff time to 10 s.
TRIGger:A:LEVel:AUXin
This command sets the threshold voltage level to use for an Edge, Pulse Width,
Runt or Rise/Fall (aka Transition, aka Slew Rate) trigger when triggering on the
Aux Input connector signal.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-877
Commands Listed in Alphabetical Order
Conditions
This command is
not available for MDO4000/B series models, or 4-channel
MDO3000 series models as they have no Aux Input connector.
Group
Trigger
Syntax
TRIGger:A:LEVel:AUXin {<NR3>|ECL|TTL}
TRIGger:A:LEVel:AUXin?
Arguments
<NR3> is a floating point number that sets the trigger threshold level, in Volts,
for the Aux Input connector.
ECL sets the threshold level to a preset ECL high level of -1.3V.
TTL sets the threshold level to a preset TTL high level of 1.4V.
TRIGger:A:LEVel:CH<x>
This command sets the threshold voltage level to use for an Edge, Pulse Width,
Runt or Rise/Fall (aka Transition, aka Slew Rate) trigger when triggering on an
analog channel waveform. x can be 1 - 4. Each channel can have an independent
trigger level.
Group
Trigger
Syntax
TRIGger:A:LEVel:CH<x> {<NR3>|ECL|TTL}
TRIGger:A:LEVel:CH<x>?
Arguments
<NR3> is a floating point number that sets the trigger threshold level, in Volts, for
the specified analog channel.
ECL sets the threshold level to a preset ECL high level of -1.3V.
TTL sets the threshold level to a preset TTL high level of 1.4V.
TRIGger:A:LEVel:D<x>
This command sets the threshold voltage level to use for an Edge or Pulse Width
trigger when triggering on a digital channel waveform. <x> can be 1 - 16. Each
channel can have an independent trigger level.
2-878 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
NOTE. MDO3000 m
odels only have two digital threshold controls: one for digital
channels D0 - D7, and the other for D8 - D15. Digital channel trigger levels
cannot be set independently for these models. Changing one digital channel’s
threshold l evel changes all of the channels’ levels in the same set.
Conditions
MSO/MDO4000/B/C models only as well as MDO3000 models with option
MDO3MSO installed.
Group
Trigger
Syntax
TRIGger:A:LEVel:D<x> {<NR3>|ECL|TTL}
TRIGger:A:LEVel:D<x>?
Arguments
<NR3> is a floating point number that sets the trigger threshold level, in Volts, for
the specified digital channel.
ECL sets the threshold level to a preset ECL high level of -1.3V.
TTL sets the threshold level to a preset TTL high level of 1.4V.
TRIGger:A:LOGIc? (Query Only)
Returns all of the A logic trigger parameters.
Group
Trigger
Syntax
TRIGger:A:LOGIc?
Related Commands
TRIGger:A:LOGIc:CLAss
Examples
TRIGGER:A:LOGIC? might return :TRIGGER:A:LOGIC:CLASS
SETHOLD;FUNCTION AND;THRESHOLD:CH1 20.0000E-3;CH2 0.0000;
CH3 0.0 000;CH4 0.0000;:TRIGGER:A:LOGIC:INPUT:CH1
X;CH2 X ;CH3 X;CH4 X;CLOCK:SOURC E NONE;EDGE
RISE;:TRIGGER:A:LOGIC:PATTERN:INPUT:CH1 X;CH2 X;CH3
X;CH4 X ;:TRIGGER :A:LOGIC:PATTERN:WHEN TRUE;WHEN:LESSLIMIT
4.0000E-9;LIMIT 4.0000E-9;:TRIGGER:A:LOGIC:PATTERN:DELTATIME
4.0000E-9
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-879