Bnc 7000 Series Programmer Manual Manual do Utilizador descarregar pdf (Página 34)

state can be set high or low. The gate mode works only with an external

trigger source.

POINT Upon triggering, only a single point of the sweep (list) is played.

*RST NORM

:TRIGger:TYPE:GATE

[SOURce]:TRIGger:TYPE:GATE LOW|HIGH

[SOURce]:TRIGger:TYPE:GATE?

This command selects the active state (gate polarity) of the gate while using the gating trigger mode.

The LOW and HIGH selections correspond to the low and high states of an external trigger signal. For

example, when you select HIGH, the active state occurs during the high of the trigger signal.

When the active state occurs, the SERIES 7000 starts the waveform playback at the last played

sample point, then stops the playback at the next sample point when the inactive state occurs.

LOW The waveform playback starts when the trigger signal goes low (active state) and

stops when the trigger signal goes high (inactive state).

HIGH The waveform playback starts when the trigger signal goes high (active state) and

stops when the trigger signal goes low (inactive state).

*RST HIGH

:TRIGger[SEQuence]SOURce

[SOURce]:TRIGger[SEQuence]:SOURce IMMediate | EXTernal | BUS

[SOURce]:TRIGger[SEQuence]:SOURce?

This command sets the trigger source.

IMMediate No waiting for a trigger event occurrs

EXTernal This choice enables the triggering of a sweep event by an externally applied signal at

the MOD IN connector.

BUS This choice enables triggering over the LAN using the *TRG commands.

*RST IMM

:TRIGger[SEQuence]:SLOPe

[SOURce]:TRIGger[SEQuence]:SLOPe POSitive|NEGative

[SOURce]:TRIGger[SEQuence]:EXTernal:SLOPe?

This command sets the polarity for an external trigger signal while using the continuous, single

triggering mode. The POSitive and NEGative selections correspond to the high (positive) and low

(negative) states of the external trigger signal. For example, when you select POSitive, the waveform

responds (plays) during the high state of the trigger signal. When the SERIES 7000 receives multiple

trigger occurrences when only one is required, the instrument uses the first trigger and ignores the

rest.

*RST POS

Berkeley Nucleonics Corporation 2955 Kerner Blvd., San Rafael, CA 94901

Phone: 415-453-9955, Fax: 415-453-9956, Email: [email protected]om, Web: www.berkeleynucleonics.com

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Bnc 7000 Series Programmer Manual Manual do Utilizador Página 34