Keithley 2600a series - Page 437

2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-115
Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands
smuX.measure.delay
X= SMU channel (a or b)
Attribute Controls the measurement delay.
Default smuX.DELAY_OFF (2601A/2602A/2611A/2612A)
smuX.DELAY_AUTO (2635A/2636A)
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
mdelay = smuX.measure.delay -- Reads the measure delay.
smuX.measure.delay = mdelay -- Writes the measure delay.
mdelay The measurement delay value.
Set mdelay to one of the following values:
0 or smuX.DELAY_OFF No delay.
-1 or smuX.DELAY_AUTO Automatic delay value.
user_value Set user delay value.
Remarks • This attribute allows for additional settling time before taking a measurement.
• The smuX.DELAY_AUTO setting causes a current range-dependent delay to be inserted when a
current measurement is requested. This happens when a current measurement command is
executed, when the measure action is being performed in a sweep, or after changing ranges
during an auto-ranged measurement.
•If smuX.measure.count is greater than 1, the measurement delay is only inserted before the
first measurement.
• mdelay can be set to a specific user-defined value that sets the delay that is used regardless of
range.
Also see smuX.measure.delayfactor, smuX.source.delay
Example Sets the measurement delay to 10mS:
smua.measure.delay = 0.010
smuX.measure.delayfactor
X= SMU channel (a or b)
Attribute This attribute is a multiplier to the delays used when smuX.delay is set to smuX.DELAY_AUTO.
Default 1
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
delayfactor = smuX.measure.delayfactor -- Reads the delay factor.
smuX.measure.delayfactor = delayfactor -- Writes the delay factor.
delayfactor The delay factor multiplier.
Remarks • The delay factor is only applied when smuX.measure.delay = smuX.DELAY_AUTO.
• The default value is 1.0.
• This attribute can be set to a value less than 1 (for example, 0.5) to decrease the automatic
delay.
• This attribute can be set to a value greater than 1 (for example, 1.5 or 2.0) to increase the
automatic delay.
• Setting this attribute to zero disables delays, even when
smuX.measure.delay = smuX.DELAY_AUTO.
Also see smuX.measure.delay
Example Increase the automatic delay by 2 times:
smuX.measure.delayfactor = 2.0