Keithley 2450 User Manual

Section
8: TSP command reference Model 2450 Interactive SourceMeter® Instrument
Reference Manual
8-176 2450-901-01 Rev. B/September 2013
Details
The digital trigger pulsewidth command determines how long the trigger is asserted. The trigger stimulus for a
digital I/O line may be set to one of the existing trigger events, which are described in the following table.
Trigger events
Event description Event constant
No trigger event
trigger.EVENT_NONE
Front-panel TRIGGER key press
trigger.EVENT_DISPLAY
Notify trigger block N (1 to 8) generates a trigger
event when the trigger model executes it
trigger.EVENT_NOTIFYN
A command interface trigger occurred:
• Any remote interface: *TRG
• GPIB only: GET bus command
• VXI-11: VXI-11 command
device_trigger
trigger.EVENT_COMMAND
Line edge (either rising, falling, or either based on
the configuration of the line) detected on digital
input line
N
(1 to 6)
trigger.EVENT_DIGION
Line edge detected on TSP-Link synchronization
line N (1 to 3)
trigger.EVENT_TSPLINKN
Appropriate LXI trigger packet is received on LAN
trigger object N (1 to 8)
trigger.EVENT_LANN
Trigger event blender N (1 to 2), which combines
trigger events
trigger.EVENT_BLENDERN
Trigger timer
N
(1 to 4) expired
trigger.EVENT_TIMERN
Source limit condition occurs
trigger.EVENT_SOURCE_LIMIT
Example
digio.line[2].mode = digio.MODE_TRIGGER_OUT
trigger.digout[2].stimulus = trigger.EVENT_TIMER3
Set the stimulus
for output digital
trigger line 2 to be
the expiration of
trigger timer 3.
Also see
digio.line[N].mode (on page 8-43)
digio.line[N].reset() (on page 8-44)
trigger.digin[N].clear() (on page 8-170)
trigger.digout[N].assert() (on page 8-173)
Digital I/O port (on page 3-62)

Keithley 2450 Specifications

General

Model	2450
Category	SourceMeter
Voltage Source Range	±200 V
Current Source Range	±1 A
DC Voltage	200 V
DC Current	1 A
Power Output	20 W
Resolution	6.5 digits
Display	5-inch capacitive touchscreen
Operating Temperature	0°C to 50°C
Connectivity	USB, LAN, GPIB
Dimensions	213 mm × 88 mm × 370 mm