Publication No. 980935 Rev. A
3152B User Manual
EADS North America Test and Services
Operation 3-9
off.
•
The gate remains closed as long as the trigger signal is below
the trigger level setting, and opens when the trigger signal
exceeds the trigger level setting.
Use the following commands to turn the gate function on and to
select the condition that will open the gate:
init:cont off
Selects the interrupted run mode. If you
did not select a specific interrupted run
mode since power-up, the generator will
automatically be placed in Triggered
mode.
trig:gate 1
Turns the Gated mode on.
trig:gate lev
This option makes the gate level-sensitive.
The gate opens when the gating signal
amplitude exceeds the value of the
programmed trigger level. This is the
default for Gated mode.
trig:gate tran
This option makes the input transition-
sensitive. The gate opens on the first
transition, and closes on the next
transition.
<gate event>
This event controls Gated mode. You may
select the source of the gate events from a
number of inputs, including the front-panel
or VXIbus backplane trigger line.
The gating sequence continues unless you change the run mode or
turn off power. Use the following commands to restore Continuous
mode:
trig:gate 0
Turns off the Gated mode. The generator
reverts to Triggered mode.
init:cont on
Places the 3152B into Continuous mode.
Burst Run Mode
Burst mode is similar to Triggered mode except that only one trigger
signal is needed to generate a counted number of output cycles. In
Burst mode, the output remains at a specific DC level until a valid
trigger event initiates a burst of output waveforms. Any trigger
source can initiate a burst. If a hardware trigger source is selected,
the edge sensitivity can be programmed for either the rising or
falling edge of the input signal.
Each time a transition at the trigger input occurs, the 3152B
generates a counted burst of output waveforms. At the end of the
burst, the output assumes a DC level equal to the amplitude of the
first point of the waveform. The burst counter is programmable from
1 to 1 M counts.
The 3152B can also operate in conjunction with Re-triggered mode,
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