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Trigger
R&S
®
RTB2000
66User Manual 1333.1611.02 ─ 03
Duration
The switch has the following two effects:
●
Selects the mode of the
True | False comparison.
●
Enables or disables the
Time limitation.
True | False
Defines whether the instrument triggers on fulfillment of the logical condition, or on vio-
lation.
●
If
Duration = on, the instrument triggers when the logic combination "Is True" or
"Is False" for a specified time duration.
●
If
Duration = off, the instrument triggers when the logic combination is found in the
signal ("Goes True"), or if it disappears ("Goes False").
Remote command:
TRIGger:A:PATTern:CONDition on page 273
Time limitation
To set a time limitation for the pattern, you have several possibilities. They are similar
to the setting of a pulse width, see Chapter 5.5, "Width Trigger", on page 59.
●
"Timeout" and "Time t"
Define a minimum time during which the signals match the pattern condition.
●
"Width >" or "Width <" and "Time t"
Triggers if the pattern condition changes before or after the specified time.
●
"Width =", "Time t1" and "Variation"
Triggers if the pattern condition is fulfilled for a duration "Time t1" ± "Variation".
●
"Width ≠", "Time t1" and "Variation"
Triggers if the pattern condition is fulfilled for a duration shorter than "Time t1" -
"Variation", or longer than "Time t1" + "Variation".
●
"Inside", "Time t1" and "Time t2"
Triggers if the pattern condition is fulfilled for a duration between "Time t1" and
"Time t2". These settings are an alternative setting to the definition with "Width =".
The time values are interdependent and adjusted accordingly.
●
"Outside", "Time t1" and "Time t2"
Triggers if the pattern condition is fulfilled for a duration shorter than "Time t1", or
longer than "Time t2". These settings are an alternative setting to the definition with
"Width ≠". The time values are interdependent and adjusted accordingly.
Remote command:
TRIGger:A:PATTern:MODE on page 274
TRIGger:A:PATTern:WIDTh:RANGe on page 274
TRIGger:A:PATTern:WIDTh[:WIDTh] on page 275
TRIGger:A:PATTern:WIDTh:DELTa on page 275
5.8 Timeout Trigger
The timeout trigger checks if the signal stays above or below the threshold voltage for
a specified time lapse. In other words, the trigger occurs if the trigger source signal
does not cross the threshold during the specified time.
Timeout Trigger
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