Triggers
R&S
®
RTP
246User Manual 1337.9952.02 ─ 12
TRIGger<m>:QUALify<n>:D:LOGic on page 1302
TRIGger<m>:QUALify<n>:D[:ENABle] on page 1301
Trigger Levels
Define the trigger level for each input channel. For state and pattern trigger, the trigger
level is a decision threshold: If the signal value is higher than the trigger level, the sig-
nal state is high (1 or true for the Boolean logic). Otherwise, the signal state is consid-
ered low (0 or false) if the signal value is below the trigger level.
These trigger levels are also used in qualification setup.
You can set the trigger levels for all channels to the same value, see "Couple levels
(Trigger level and hysteresis coupling)" on page 229.
Couple levels (Trigger level and hysteresis coupling)
Sets the trigger levels and hysteresis values for all channels to the values of the cur-
rently selected trigger source. The function affects only the levels defined for the
selected condition. The hysteresis of the external trigger input is an independent value,
and it is not affected by level coupling.
In trigger sequences, another coupling of trigger levels is possible: "Couple sequence
thresholds" on page 249.
Remote command:
TRIGger<m>:SCOupling on page 1273
6.8 Sequence
A trigger sequence consists of at least one trigger condition and additional conditions
defining when the trigger occurs.
The trigger sequence "A → B → R", for example, consists of two subsequent conditions:
A-trigger and B-trigger with optional B-trigger delay and count. In addition, a reset con-
dition R can be configured: timeout or R-trigger condition. A-, B-, and R-triggers are
configured in the same way.
The instrument checks all trigger settings for compatibility and disables settings that do
not fit the previous settings in the sequence.
After the A-trigger conditions have been met, and an optional delay has passed, the B-
trigger with independent conditions is enabled. The instrument waits until one or a
specified number of B-trigger conditions occur. If the reset condition is not fulfilled, the
latest B-trigger causes the trigger event, and then the sequence starts again. The B-
trigger can only cause the trigger event if it occurs after the A-trigger and after the
delay time.
If you expect, for example, an irregular B-trigger, you can configure a reset condition to
restart the sequence. The reset condition can be a simple timeout, and/or a reset event
that is defined in the same way as the A- and B-trigger conditions.
Sequence
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