User`s guide

82 Chapter 5
Making a Measurement
Trigger system
“Measurement” State
In “Measurement” state, the instrument waits for the elapse of the sweep delay time (set by
the :SENS{1-4}:SWE:DEL command on page 424) and then starts a measurement cycle;
this process is performed sequentially on each of those channels that were in “Initiate” state
immediately before the transition to this state, in the ascending order of the channel
numbers.
When the instrument has finished measuring all the active channels, the trigger system
behaves in one of the following ways depending on the setting of continuous initiation
mode.
If continuous initiation mode is off for all the channels:
The trigger system switches to “Hold” state (arrow “c” in Figure 5-1).
If continuous initiation mode is on for one of the channels:
The trigger system switches to “Waiting for Trigger” state (arrow “d”
in Figure 5-1).
Channel-wide state and transition
“Idle” State
A channel switches to “Initiate” state when one of the following commands has been
executed (arrow “f” in Figure 5-1).
• :INIT{1-4} on page 340
• :INIT{1-4}:CONT on page 341 (“ON” specified)
“Initiate” State
A channel in this state is measured just before the entire system switches to
“Measurement” state.
When the instrument has finished measuring a channel, the channel behaves in one of the
following ways depending on the setting of continuous initiation mode (set by the
:INIT{1-4}:CONT command on page 341 command).
If continuous initiation mode is off: The channel switches to “Idle” state (arrow “g” in
Figure 5-1).
If continuous initiation mode is on: The channel remains in “Initiate” state (arrow “h”
in Figure 5-1).