Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 3:
Functions and features
2461-901-01 A/November 2015 3-113
When the trigger model executes a notify block, the instrument generates the SCPI event
NOTify<n> or TSP event trigger.EVENT_NOTIFYN. You can assign this event to a command that
takes an event. For example, if you want a notify block to trigger a digital I/O line, insert a notify block
into the trigger model, assign it a notify event and then connect it to the stimulus of the digital I/O line
that you want to drive with the notify event. If you define a LAN trigger from the front panel, you are
asked if you want to initiate the LAN connection. You must initiate the connection to use the LAN
triggers.
Setting up the notify block using remote commands:
When you set up the notify block using remote commands, you define the notify event number. You
need to set up the lines that use the notify event as a stimulus as separate commands.
In the following example, you define trigger model block 5 to be the notify 2 event. You can then
assign the notify 2 event to be the stimulus for digital output line 3. To do this, send the following
commands in SCPI:
:TRIG:BLOC:NOT 5, 2
:TRIG:DIG3:OUT:STIMulus NOTify2
In TSP, send the commands:
trigger.model.setblock(5, trigger.BLOCK_NOTIFY, trigger.EVENT_NOTIFY2)
trigger.digout[3].stimulus = trigger.EVENT_NOTIFY2
If digital I/O line 3 is connected to another instrument, this causes the trigger execution to wait for the
other instrument to indicate that it is ready.
Front panel options
When you select the Notify block from the front panel, the following options are available.
Setting Description
Notify
The line or timer that is notified:
• Digital Out Line: Select the digital output event (line 1
through line 6)
• TSP-Link Out Line: Select the TSP-Link output event (line 1
through 3)
• Timer: Select the timer event (timer 1 through 4)
•
LAN Out: Select the LAN output line (line 1 to 8)
Config
The available settings depend on the Notify selection:
• For the digital, TSP-Link, and LAN out lines, select the pulse
logic (negative or positive)
•
For the timer, select either delay or start time

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV