2470 High Voltage SourceMeter Instrument Reference Manual
Section 8: Triggering
2470-901-01 Rev. A /
May
2019
8-5
You can set the LAN trigger edge detection method in incoming LXI trigger packets. The edge that is
selected also determines the hardware value in outgoing LXI trigger packets. The following table lists
the LAN trigger edges.
Trigger mode
Input detected
Output generated
Either edge
Either
Negative
Falling edge
Falling
Negative
Rising edge
Rising
Positive
LAN trigger objects generate LXI trigger events, which are LAN0 to LAN7 (zero based). To specify the
LAN trigger event in a command, use
LAN
N
, where
N
is 1 to 8.
LAN1
corresponds to LXI trigger event
LAN0 and
LAN8
corresponds to LXI trigger event LAN7. To specify the LAN trigger event in a
command, see
(on page 8-53).
Generate LXI trigger packets
You can configure the 2470 to output an LXI trigger packet to other LXI instruments.
To generate LXI trigger packets:
1.
Call the SCPI
:TRIGger:LAN<n>:OUT:CONNect:STATe
command or TSP
trigger.lanout[
N
].connect()
function.
2.
Select the event that triggers the outgoing LXI trigger packet by assigning the specific event to
the LAN stimulus input using the SCPI
:TRIGger:LAN<n>:OUT:STIMulus
command or TSP
trigger.lanout[N].stimulus
attribute.
Make sure to use the same LXI domain on both the 2470 instrument and the other instrument. If the
2470 has a different LXI domain from the instrument at the other end of the trigger connection, the
LXI trigger packets are ignored by both instruments.
Trigger timers
You can use trigger timers to add delays, change the source value, and start measurements at timed
intervals. The 2470 has four independent timers that you can use.
Trigger timers are only available over a remote interface. You can set the count, delay, and when the
trigger occurs for the trigger timers. You need to enable the trigger timers before using the
SCPI
:TRIGger:TIMer<n>:STATe
or the TSP
trigger.timer[
N
].enable
command.
