12-60 Instrument Control Library
Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006
Return to
smuX
functions and attributes
The functions and attributes in this group are used to control basic source-measure
operations of the SMUs and perform calibration.
smuX.cal.date
X = SMU channel (a or b)
Attribute
Calibration date for the active calibration set.
Usage
caldate = smuX.cal.date
-- Reads calibration date.
smuX.cal.date = caldate
-- Writes calibration date.
Set
caldate
to the following value:
os.time({year=yr, month=mo, day=da})
where:
yr
2005
to
2037
mo
1
to
12
da
1
to
31
Remarks
• This attribute stores the calibration date associated with the active calibration set.
The calibration date can be read at any time but can only be assigned a new value
when calibration has been enabled with the
smuX.cal.unlock
function.
• This attribute is stored with the active calibration set. If a different calibration set is
restored, this attribute will reflect the date stored with that set.
• Hour and minute can also be included in
caldate
as follows:
os.time({year=yr, month=mo, day=da, hour=hr, minute=mn})
Seconds can be included, but will essentially be ignored due to the precision of the
internal date storage format.
• The date is stored as the number of seconds since UTC 12:00 am Jan 1, 1970.
Details
(calibration).
Also see
,
Example
Sets calibration date for SMU A (July 1, 2005):
smua.cal.date = os.time({year=2005, month=7, day=1})
Summary of Contents for SourceMeter 2600 Series
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