Triggering; Basic Triggering - Keithley 4200-SCS Reference Manual

Section 11: Pulse Source-Measure Concepts
Table 11-36
Return values for uprange_kiscope
Value
present range

Triggering

Triggering is used for the following operations:
• Basic
(Continuous, Burst or Trig Burst), and use a software trigger to start pulse output.
• Pulse-measure
generator card and the scope card. When pulse output starts, the scope is triggered by the
pulse generator to capture one or more waveforms.
• Pulse output
multiple pulse generator cards.
NOTE

Basic triggering

Pulse output of a pulse card can be started by a software trigger. The LPT function for the software
trigger also sets the trigger mode. Enabled pulse generator channels will then output a continuous
string of pulses (continuous trigger mode), or a burst of pulses (burst or trig burst trigger mode).
Software trigger source
There are two types of trigger sources: Software and External. In order to use a software trigger to
start pulse output, the software trigger source must first be selected. The
is used to select the software trigger source. Refer to
trigger sources.
Trigger mode
With the software trigger source selected, using the
trigger modes and initiates (triggers) the start of pulse output:
• Continuous: This trigger mode continuously outputs pulses when pulse output is started.
• Burst or Trig Burst: Either of these trigger modes output a burst of pulses when pulse
output is started. A burst is a finite number of pulses (1 to 2
between burst and trig burst is the behavior of trigger output (refer to
output
NOTE
11-30
Type
double
triggering: Configure the Keithley pulse card for the desired trigger mode
synchronization: Synchronize the pulse-measure operation of a pulse
synchronization: Use external triggering to synchronize the pulse output of
Details on the trigger functions discussed in the following paragraphs are provided in
the LPT Library Function Reference
trigger).
When using the burst or trig burst trigger mode, make sure to set the pulse count
before starting pulse output. The
Return to
Description
New range value, after uprange
in Section 8.
External triggering
pulse_trig
pulse_burst_count
Section Topics
Model 4200-SCS Reference Manual
pulse_trig_source
for details on the external
function selects one of the following
32
-1). The only difference
Pulse generator card
function sets the burst count.
4200-901-01 Rev. S / May 2017
function