Keithley 2520, Руководство пользователя, Страница: 185 / 329

Model 2520 User’s Manual Common Commands 12-5
*SAV, *RCL programming example
Table 12-3 summarizes the basic command sequence for saving and recalling a setup. The
present setup is stored in memory location 2, GPIB defaults are restored, and the memory
location 2 setup is recalled.
*RST — reset
Return Model 2520 to GPIB defaults
When the *RST command is sent, the Model 2520 performs the following operations:
• Returns the Model 2520 to the GPIB default conditions. Refer to “Default parame-
ters” column of SCPI tables in
Section 14 .
• Cancels all pending commands.
• Cancels response to any previously received *OPC and *OPC? commands.
*TRG — trigger
Send bus trigger to Model 2520
Use the *TRG command to issue a GPIB trigger to the Model 2520. It has the same effect
as a group execute trigger (GET).
Use the *TRG command as an event to control operation. The Model 2520 reacts to this
trigger if BUS is the programmed arm control source using the :TRIG:SOUR BUS com-
mand.
NOTE
Details on triggering are covered in Section 8 .
*TRG programming example
The command sequence in Table 12-4 configures the Model 2520 to be controlled by bus
triggers. The last command, which sends a bus trigger, triggers one measurement. Each
subsequent bus trigger will also trigger a single measurement.
NOTE
With :TRIG:SOURce BUS selected, do not send any commands (except *TRG,
GET, DCL, SDC, IFC, and ABORt) while performing source-measure opera-
tions. Otherwise, erratic operation will occur.
Table 12-3
*SAV, *RCL programming example
Command Description
*SAV 2
*RST
*RCL 2 Save present setup in memory location 2.
Restore GPIB defaults.
Recall location 2 setup.