Keysight E4980AL - Page 250

250 Keysight E4980A/AL Precision LCR Meter
Overview of Remote Control
Trigger System
8-
When starting the trigger system with one of the following commands, the
system switches from “Idle” to the “Waiting for Trigger” state. The conditions of
transition differ depending on which trigger source is specified (Refer to Figure
8-14 on page 253 and Figure 8-15 on page 254).
• :INIT[:IMM]
• :INIT:CONT
When the trigger source is set to the external trigger (EXT), the conditions for
switching from “Idle” to “Waiting for Trigger” differ between the remote mode
and local mode.
Remote mode When the :INIT:CONT is ON, the trigger system automatically
switches to “Waiting for Trigger.”
When the :INIT:CONT is OFF, the trigger system switches to
the “Waiting for Trigger” state by sending the :INIT:IMM
command.
Local mode The trigger system automatically switches from “Idle” to
“Waiting for Trigger.”
When the trigger source is set to the internal trigger (INT) or manual trigger
(MAN), the trigger system automatically switches from the “Idle” state to the
“Waiting for Trigger” state.
“Waiting for Trigger” State
When the trigger system is in the “Waiting for Trigger” state and either the
instrument is triggered (i.e., a trigger is detected) or one of the following
commands is executed, the trigger system switches to the “Measurement”
state.
• :TRIG
As shown in the table below, the instrument is triggered differently depending
on which trigger source is specified. To specify the trigger source, use the
:TRIG:SOUR command.
The E4980A/AL in the “Idle” state switches to the “Measurement” state by
using the :TRIG command.
When the :ABOR command is executed, the trigger system switches to the
“Idle” state regardless of which state the E4980A/AL is currently in. An
error occurs when query commands of the :FETCh subsystem are executed
because no measurement data exist.
Trigger Source How instrument is triggered
Internal trigger
(Internal)
The instrument is automatically triggered within itself.