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18-20
SCPI Command Reference
2400 Series SourceMeter
®
User’s Manual
:SYSTem
:AZERo
Control auto zero and NPLC caching.
✓
[:STATe] <name>
Control auto zero (OFF = disabled;
ON = enabled; ONCE = force immediate
update of auto zero.)
ON
✓
[:STATe]?
Query auto zero state.
✓
:CACHing
Control NPLC caching.
[:STATe]<b>
Enable (ON or 1) or disable (OFF or 0)
NPLC caching.
OFF
[:STATe]?
Query NPLC caching state.
:REFResh
Force an immediate update for all NPLC
values in cache.
:RESet
Clear the cache of all NPLC values.
:NPLCycles?
Return a list of NPLC values in the
cache from oldest to newest.
:LFRequency <freq>
Select line frequency: 50 or 60 (Hz):
:AUTO <b>
Enable or disable auto frequency.
(Note 1)
:AUTO?
Query state of auto frequency.
:LFRequency?
Query line frequency.
:TIME
Timestamp:
:RESet
Reset timestamp to zero seconds.
:AUTO <b>
Enable/disable timestamp reset when
exiting idle.
OFF
:TIME?
Query timestamp.
:MEMory
Initialize memory:
:INITialize
Initialize battery backed RAM.
✓
:LOCal
Take unit out of remote (RS-232 only).
✓
:RWLock <b>
Enable or disable local lockout (RS-232
only).
:RCMode <name>
Set auto range on compliance mode
(SINGle or MULTiple).
SINGle
:RCMode?
Query auto range on compliance mode.
:MEP
Path to 488.1 protocol (
Appendix G
).
[:STATe]?
Query protocol (1 = SCPI, 0 = 488.1).
:HOLDoff <b>
Enable/disable NDAC hold-off.
OFF
1. The auto line frequency setting is not affected by *RST and :SYSTem:PRESet.
Table 18-9 (continued)
SYSTem command summary
Command
Description
Default
parameter SCPI
Source
memory
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