Keithley 3700 series Reference Manual page 240

Section 9: Instrument Control Library (ICL)
dmm.limit[Y].high.fail
Remarks
Example
dmm.limit[Y].high.value
Attribute
Usage
Remarks
Also see
Example
dmm.limit[Y].low.fail
Attribute
Usage
9-96
This attribute returns the results of high limit Y testing:

0 indicates test passed – measurement within the high limit

1 indicates test failed – measurement has exceeded high limit
A failed indication does indicate the high limit caused the failure. You may read the
measurement event register of the status model to see fail indication as well. The
response only has meaning if lower limit Y is set as the triggersource to a digio line.
Otherwise, it will indicate the results of the last limit test when enabled.
To query the test results of high limit 2:
results = dmm.limit[2].fail.high
Indicates the high limit value for limit Y.
To read the high value of limit Y:
value = dmm.limit[Y].high.value
To write the high value of limit Y:
dmm.limit[Y].high.value = value
value: Valid range of -4294967295 to +4294967295
Use this attribute to specify or query the high limit value of limit Y. When limit Y testing
is enabled (digio.trigger[N].triggersource = dmm.trigger.EVENT_LIMIT1_HIGH or
dmm.trigger. EVENT_LIMIT2_HIGH), the measurement value must be greater than
this value to avoid causing a fail indication for the limit. The default value is 1 for limit 1
and 2 for limit 2. You may set or get the value regardless if the limit is set to a digio
triggersource.
dmm.limit[Y].high.fail (on page 9-95)
dmm.limit[Y].low.value (on page 9-97)
To set high limit of limit 2 to 5:
dmm.limit[2].high.value = 5
Query for the low test results of limit Y.
To read the low fail indication of limit Y:
value = dmm.limit[Y].low.fail
Series 3700 System Switch/Multimeter Reference Manual
Document Number: 3700S-901-01 Rev. A / August 2007
where Y = 1 to 2 for limit
number
where Y = 1 or 2 for limit
number
where Y = 1 or 2 for limit
number