IEEE-488 Reference
3-125
Effects of negative transitions on the Measurement Event Register:
Negative transition effect on
Measurement event
Measurement Event Register
Reading overflow
Sets B0 when a reading has gone from overflow to normal.
Low limit 1
Sets B1 when the reading is no longer less than the low limit
1 setting.
High limit 1
Sets B2 when the reading is no longer greater than the low
limit 1 setting.
Low limit 2
Sets B3 when the reading is no longer less than the low limit
2 setting.
High limit 2
Sets B4 when the reading is no longer greater than the high
limit 2 setting.
Reading available
Sets B5 when the next reading is being taken.
Reading Underflow
Sets B6 when the reading underflow condition has cleared.
Buffer available
Sets B7 when the trace buffer has become empty.
Buffer half full
Sets B8 when the trace buffer is no longer half full.
Buffer full
Sets B9 when the trace buffer is no longer full.
Sequence reading available
Sets B10 when an Alternating Polarity measurement is being read.
Buffer pretriggered
Sets B11 when the trace buffer pretrigger operations are completed.
Out of Limits Error
Sets B12 when the out of limits error has cleared.
Fixture lid closed
Sets B13 when fixture lid is opened.
V-source compliance
Sets B14 when V-source comes out of compliance.
Effects of negative transitions on the Questionable Event Register:
Negative transition effect on
Questionable event
Questionable Event Register
Volts Summary
Sets B0 when a subsequent valid volts measurement occurs.
Amps Summary
Sets B1 when a subsequent valid amps measurement occurs.
Temperature Summary
Sets B4 when a subsequent valid external temperature reading oc-
curs.
Humidity Summary
Sets B9 when a subsequent valid relative humidity reading occurs.
Ohms Summary
Sets B10 when a subsequent valid ohms measurement occurs.
Coulombs Summary
Sets B11 when a subsequent valid coulombs measurement occurs.
Sequence Test Summary
Sets B12 when the sequence test is re-started.
Effects of negative transitions on the Operation Event Register:
Negative transition effect on
Operation event
Operation Event Register
Calibrating
Sets B0 at the end of calibration.
Trigger layer
Sets B5 when leaving the Trigger Layer.
Arm layer
Sets B6 when leaving an arm layer.
Calculating
Sets B9 when the reading calculation is completed.
Idle
Sets B10 when leaving the idle state.
Sequence Test Running
Sets B11 when the aborted test is restarted.
Effects of negative transitions on the Trigger Event Register:
Negative transition effect on
Trigger event
Trigger Event Register
Sequence 1
Sets B1 when leaving the Trigger Layer.
