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Commands Listed in Alphabetical Order

Syntax

BUS:LOWerthre

shold:REF<x> {<NR3>|ECL|TTL}

BUS:LOWerthreshold:REF<x>?

Related Commands

BUS:UPPerthreshold:REF<x>

Arguments

<NR3> is a ﬂoating point number that speciﬁes the lower threshold for the

reference waveform, in volts

ECL – ECL (-1.3 volts). Note that this setting is constrained, depending upon the

vertical scale for the speciﬁed reference waveform.

TTL – TTL (1.4 volts). Note that this setting is constrained, depending upon the

vertical scale for the speciﬁed reference waveform.

Examples

BUS:LOWerthreshold:REF2 TTL sets the lower threshold for reference

waveform 2 to 1.4 volts. Note that this setting is constrained, depending upon the

vertical scale for the speciﬁed reference waveform.

BUS:LOWerthreshold:REF3? might return 0.0E+0, which is the default.

BUS:THReshold:CH<x>

This command speciﬁes the threshold for analog channel <x>, where x is the

channel number (1–4). This setting applies to all trigger types that use the channel.

Conditions

This command requires a serial bus analysis module on DPO models.

Group

Bus

Syntax

BUS:THReshold:CH<x> {ECL|TTL|<NR3>}

BUS:THReshold:CH<x>?

Arguments

ECL speciﬁes a preset ECL high level of –1.3V.

TTL speciﬁes a TTL preset high level of 1.4V.

<NR3> is a ﬂoating point number that speciﬁes the threshold level, in volts.

BUS:THReshold:D<x>

This command speciﬁes the threshold for digital channel <x>, where x is the

digital channel number (0–15). This will apply to all Search and Trigger Types

that use the channel.

2-206 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual

Tektronix MDO4000B Series User Manual

Other manuals for Tektronix MDO4000B Series