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. Changing one digital channel’s
threshold l evel changes all of the channels’ levels in the same set.
Group
Bus
Syntax
BUS:THReshold:D<x> {<NR3>|ECL|TTL}
BUS:THReshold:D<x>?
Arguments
ECL specifies a preset ECL high level of -1.3V.
TTL specifies a preset TTL high level of 1.4V.
<NR3> is a floating point number that specifies the threshold level, in volts.
BUS:UPPerthreshold:CH<x>
Sets the upper threshold for each analog channel (1–4). This applies to all search
and trigger types that use the channel.
Group
Bus
Syntax
BUS:UPPerthreshold:CH<x> {<NR3>|ECL|TTL}
BUS:UPPerthreshold:CH<x>?
Arguments
<NR3> is a floating point number that specifies the threshold, in volts.
ECL specifies a preset ECL high level of -1.3V.
TTL specifies a preset TTL high level of 1.4V.
Examples
BUS:UPPERTHRESHOLD:CH1 800.0000E-3 sets the CH1 upper threshold to
800 mV.
BUS:UPPERTHRESHOLD:CH1? might return :BUS:UPPERTHRESHOLD:CH1
-800.0000E-3
indicating that the CH1 upper threshold is set to -800 mV.
BUS:UPPerthreshold{:MATH|:MATH1}
This command specifies the upper threshold of the math waveform. This will
apply to all sea
rch and trigger types that use the math waveform.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-207
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