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18-108 SCPI Command Reference
2400 Series SourceMeter
®
User’s Manual
Select guard mode
GUARd <name>
:SYSTem:GUARd <name>
Select guard mode
Parameters
<name> =
OHMS
Ohms guard mode
CABLe
Cable guard mode
Query
:GUARd?
Query guard mode
Description
This command is used to select the guard mode. OHMS guard is a low-
impedance guard drive used for in-circuit resistance measurements.
Ohms guard is not available for SourceMeters that have 1A, 3A and/or
10A ranges (source or measure). CABLE guard provides a high-
impedance guard drive that is used to eliminate leakage currents in
cabling and test fixtures.
When performing 6-wire ohms guard measurements, use the GUARD
out-put state. The OUTPut [1]:SMODe GUARd command is used to
select the GUARD output-off state.
NOTE
See
Section 2
for details on guarding.
Initialize memory
INITialize
:SYSTem:MEMory:INITialize
Initializes battery backed RAM
Description
When this command is used, the following actions to initialize battery
backed RAM occur:
•
TRACe (data store) data is lost, buffer size is reset to 100, and
timestamp is set to the absolute format.
•
SOURce1:LIST:CURR and VOLT are reset to 0A and 0V,
respectively.
•
Deletes all user-defined math expressions. (See “
CALCulate[1]
”
subsystem.)
•
All 100 memory locations for a memory sweep are initialized to the
present setup configuration of the SourceMeter with CALC 1 dis-
abled. User-defined math expressions are replaced with the
“Power” math expression.
•
The four standard save setups (*SAV0 - *SAV4) are initialized to
the present setup configuration of the SourceMeter.
•
All CALCulate1 user-defined math expressions are deleted.
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