Keithley 2450 User Manual

Section
3: Functions and features Model 2450 Interactive SourceMeter® Instrument Reference Man
ual
3-104 2450-901-01 Rev. B/September 2013
Trigger block summary
Front-panel icon SCPI command
TSP command
Block description
:TRIGger:BLOCk:DIGital:IO (on page 6-141)
trigger.model.setblock() — trigger.BLOCK_DIGITAL_IO (on page 8-207
)
This trigger model
block that sets the
lines on the digital
I/O port high or low
:TRIGger:BLOCk:MEASure (on page 6-144)
trigger.model.setblock() — trigger.BLOCK_MEASURE (on page 8-209
)
This defines a
trigger block that
makes a
measurement
:TRIGger:BLOCk:NOTify (on page 6-146)
trigger.model.setblock() — trigger.BLOCK_NOTIFY (on page 8-211
)
This defines a
trigger model block
that generates a
trigger event and
immediately
continues to the next
block
:TRIGger:BLOCk:SOURce:STATe (on page 6-147)
trigger.model.setblock() — trigger.BLOCK_SOURCE_OUTPUT
(on page
8-212)
This defines a
trigger block that
turns the output
source on or off
:TRIGger:BLOCk:WAIT (on page 6-148
)
trigger.model.setblock() — trigger.BLOCK_WAIT (on page 8-212
)
This defines a
trigger model block
that waits for an
event before
allowing the trigger
model to continue
Predefined trigger models
The Model 2450 includes predefined trigger models for common applications. You can use these
predefined trigger models without changing them, or you can modify them to meet the needs of your
application.
The predefined trigger models include:
• Empty: Selecting this template clears the present trigger model.
• Config List: Creates a trigger model that can recall settings that are stored in a configuration list.
• External Trigger: Creates a trigger model that allows you to use the digital I/O to send signals to
trigger external instruments.
• Simple Loop: Creates a trigger model that makes a specified number of readings. The count
defines the number of readings.
• Duration Loop: Creates a trigger model that makes continuous measurements for a specified
amount of time. When you start this trigger model, the output is turned on.

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