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6482-901-01 Rev. A / August 2012
Section 16: SCPI Command Reference
Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
SOURce <name>
:ARM[:SEQuence[1]][LAYer[1]]:SOURce <name>Specify arm event control
source
:TRIGger[:SEQuence[1]]:SOURce <name>Specify trigger event control source
Parameters
<name> = IMMediate
Pass operation through immediately
TLINk
Select Trigger Link trigger as event
TIMer
Select timer as event
MANual
Select manual event
BUS
Select bus trigger as event
NSTest
Select low SOT pulse as event
PSTest
Select high SOT pulse as event
BSTest
Select high or low SOT pulse as event
NOTE
Only IMMediate and TLINk are available as trigger layer control sources.
Query
:SOURce?
Query programmed control source
Description
These commands are used to select the event control source. With IMMediate
selected, operation immediately continues.
A specific event can be used to control operation. With TLINk selected, operation
continues when a trigger pulse is received using the trigger link.
NOTE
The following control sources are not available for the trigger layer.
For more information
on these control sources, see
“Arm layer,” page Section 8-16.
With TIMer selected, the event occurs at the beginning of the timer interval, and
every time it times out. For example, if the timer is programmed for a 30 second
interval, the first pass through the control source occurs immediately. Subsequent
arm events will then occur every 30 seconds. The interval for the timer is set using
the :TIMer command.
With MANual selected, the event occurs when the TRIG key is pressed.
With BUS selected, the event occurs when a GET or *TRG command is sent over
the bus.
With NSTest selected, the event occurs when the SOT (start-of-test) low pulse is
received. This is used for limit testing.
With PSTest selected, the event occurs when SOT (start-of-test) high pulse is
received. This is used for limit testing.
With BSTest selected, the event occurs when SOT (start-of-test) high or low pulse
is received. This is used for limit testing.
TIMer <n>
:ARM[:SEQuence[1]][:LAYer[1]]:TIMer <n>Set interval for arm layer timer
Parameters
<n> =
0.001 to 9999.999Specify timer interval in seconds
10000.00 to 99999.99Specify timer interval in seconds
Query
:TIMer?
Query programmed timer interval
Description
These commands are used to set the interval for the timer. Note that the timer is in
effect only if the timer is the selected control source.
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