Keithley 2450 User Manual

Model 2450
Interactive SourceMeter® Instrument Reference Manual Appendix C:
Status model
2450-901-01 Rev. B/September 2013 C-21
Using TSP commands:
reset()
smu.source.configlist.create("sourceList")
smu.source.range = 10
smu.source.ilimit.level = 10e-3
smu.measure.nplc = 1
smu.measure.range = 10e-3
smu.measure.autozero.once()
for i=0, 10 do
smu.source.level = i
smu.source.configlist.store("sourceList")
end
defbuffer1.clear()
-- Configure the Trigger Model
trigger.model.setblock(1, trigger.BLOCK_CONFIG_RECALL, "sourceList")
trigger.model.setblock(2, trigger.BLOCK_SOURCE_OUTPUT, 1)
trigger.model.setblock(3, trigger.BLOCK_LOG_EVENT, trigger.LOG_INFO1, "Sweep
started.")
trigger.model.setblock(4, trigger.BLOCK_BRANCH_ONCE, 6)
trigger.model.setblock(5, trigger.BLOCK_CONFIG_NEXT, "sourceList")
trigger.model.setblock(6, trigger.BLOCK_DELAY_CONSTANT, 1e-3)
trigger.model.setblock(7, trigger.BLOCK_MEASURE, defbuffer1)
trigger.model.setblock(8, trigger.BLOCK_BRANCH_COUNTER, 11, 5)
trigger.model.setblock(9, trigger.BLOCK_LOG_EVENT, trigger.LOG_INFO2, "Sweep
complete.")
trigger.model.setblock(10, trigger.BLOCK_BRANCH_COUNTER, 5, 3)
trigger.model.setblock(11, trigger.BLOCK_SOURCE_OUTPUT, 0)
-- Configure the Status Model
--=======================
-- Clear the status byte
status.clear()
-- Map the notify messages to operational register bit 0.
-- The Sweep Complete message will set the bit while the Sweep
-- Started message will clear the bit.
status.operation.setmap(0, trigger.LOG_INFO2, trigger.LOG_INFO1)
-- Enable bit 0 to flow through to the status byte.
status.operation.enable = 1
-- Enable the Operational Summary Bit to set the Master Summary Bit/SRQ
status.request_enable = status.OSB
-- Start the trigger model
trigger.model.initiate()
waitcomplete()
print(string.format("Number of Readings in Buffer: %d", defbuffer1.n))
printbuffer(1, defbuffer1.n, defbuffer1)

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