Keithley 6482, Справочное руководство

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6482-901-01 Rev. A / August 2012 Return to Section Topics 8-19
Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual Section 8: Triggering
Operation summary
The trigger model is designed to make the various source-measure applications more versatile.
Typically, it allows you to perform a specified number of measurements at various source levels.
For example, assume you want to perform three measurements each at two different channel 1
voltage bias source levels (1 V and 2 V). To do this, set the arm count to two (ARM:COUNt 2), the
trigger count to three (TRIGger:COUNt 3), and use the list sourcing mode with the following
defined list:
SOUR1:LIST:VOLT 1, 1, 1, 2, 2, 2
On the first pass through the trigger model, three measurements will be performed at the 1 V
source level. On the second pass, three measurements will be performed at the 2 V source level.
After the last measurement, the Model 6482 returns to the idle state. Note that the product of the
arm count (finite value) and trigger count determines the number of measurements that are
performed. In this example, six measurements are performed (2
×
3).
For details on the list source mode, see Section 16 , “SOURce[1] and SOURce2.”
Remote trigger commands
Table 8-1 summarizes remote trigger commands. These commands are covered in more detail in
Section 16 , “Trigger subsystem,” except for *TRG, a common command covered in Section 14 .
Table 8-1
Remote trigger command
Command Description
:INITiate
:ABORt
:ARM:COUNt <n>
:ARM:SOURce <name>
:ARM:TIMer <n>
:ARM:DIRection <name>
:ARM:ILINe <NRf>
:ARM:OLINe <NRf>
:ARM:OUTPut <event list>
:TRIGger:CLEar
:TRIGger:COUNt <n>
:TRIGger:DELay <n>
:TRIGger:SOURce <name>
:TRIGger:DIRection <name>
:TRIGger:ILINe <NRf>
:TRIGger:OLINe <NRf>
:TRIGger:INPut <event list>
:TRIGger:OUTPut <event list>
*TRG
Take Model 6482 out of the idle state.
Abort operation, return to the idle state.
Set arm count (n = Count).
Specify arm control source. Name = IMMediate, TLINk, TIMer,
MANual, BUS, NSTest, PSTest, or BSTest.
Set arm layer timer interval (n = Interval).
Control arm bypass. Name = SOURce or ACCeptor.
Select arm layer input line (NRf = input line number).
Select arm layer output line (NRf = output line number).
Select arm layer output events. Event list = TRIGger or NONE.
Clear any pending input triggers immediately.
Set trigger count (n = count).
Set trigger delay (n = delay).
Specify trigger control source. Name = IMMediate or TLINk.
Control trigger bypass. Name = SOURce or ACCeptor.
Select trigger layer input line (NRf = input line).
Select trigger layer output line (NRf = output line).
Select trigger input layer events. Event list = SOURce, DELay,
SENSe, or NONE.
Select trigger layer output events. Event list = SOURce, DELay,
SENSe, or NONE.
Trigger Model 6482 (if BUS source is selected).