Keithley 2750 User Manual page 328

Model 2750 Multimeter/Switch System User's Manual
NOTE
D *OPT? — option query
Use this query command to determine which switching modules are installed in the
Model 2750. For example, if a Model 7703 is installed in slot 1, and the other slots are
empty, the response message will look like this:
7703, NONE, NONE, NONE, NONE
Note that the model number of an installed pseudocard is returned in the same manner. See
Section 2
E *SAV <NRf> — save
*RCL <NRf> — recall
Parameters
Use the *SAV command to save the present instrument setup configuration in memory for
later recall. Any control affected by *RST can be saved by the *SAV command. The *RCL
command is used to restore the instrument to the saved setup configuration. Three setup
configurations can be saved and recalled. A saved setup is approximately 4k bytes in size.
Model 2750 ships from the factory with SYSTem:PRESet defaults loaded into the avail-
able setup memory. If a recall error occurs, the setup memory defaults to the
SYSTem:PRESet values.
NOTE
Programming example:
*SAV 2
*RST
*RCL 2
F *RST — reset
When the *RST command is sent, Model 2750 performs the following operations:
1.
The following commands take a long time to process and may benefit from
using *OPC or *OPC?:
• *RST and SYST:PRES
• *RCL and *SAV
• ROUT:MULT:CLOS and ROUT:MULT:OPEN – Only if the <clist> is long.
• CALC2:IMM and CALC2:IMM?– Only when performing the standard
deviation calculation on a large buffer. A 10,000 point buffer takes around
5.75 seconds.
for details on pseudocards.
0 = Memory location 0
1 = Memory location 1
2 = Memory location 2
For RS-232 operation, *OPC or *OPC? should be used with *SAV and *RCL,
which are slow responding commands. Details on *OPC and *OPC? are pro-
vided in Section 12.
' Save present setup in memory location 2.
' Return 2750 to RST defaults.
' Return (recall) 2750 to setup stored in memo location 2.
Returns Model 2750 to the RST default conditions (see "Default" column of SCPI
tables).
Common Commands
Query installed switching modules
Save present setup in memory
Return to setup stored in memory
Return Model 2750 to RST defaults
12-5