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Model 2790 SourceMeter
Measurement event register
The used bits of the Measurement Event Register
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Bit B0, Reading Overflow (ROF) — Set bit indicates that the reading exceeds the
measurement range of the instrument.
Bit B1, Low Limit 1 Event (LL1) — Set bit indicates that a reading has reached or
exceeded Low Limit 1.
Bit B2, High Limit 1 Event (HL1) — Set bit indicates that a reading has reached
or exceeded High Limit 1.
Bit B3, Low Limit 2 Event (LL2) — Set bit indicates that a reading has reached or
exceeded Low Limit 2.
Bit B4, High Limit 2 Event (HL2) — Set bit indicates that a reading has reached
or exceeded High Limit 2.
Bit B5, Reading Available (RAV) — Set bit indicates that a reading was taken and
processed.
Bit B6, Buffer Notify (BN) — Set bit is a notification that the user-specified number
of readings have been stored in the buffer. The TRACe:NOTify command specifies
the number of stored readings that will set this bit (see
Bit B7, Buffer Available (BAV) — Set bit indicates that there are at least two read-
ings in the buffer.
Bit B8, Buffer Half Full (BHF) — Set bit indicates that the trace buffer is half
full.
Bit B9, Buffer Full (BF) — Set bit indicates that the trace buffer is full.
Bit B10, Buffer Overflow (BOF) — Set bit indicates that the filled buffer has
wrapped and written over previously stored readings.
Bit B11, Hardware Limit Event (HL) — Set bit indicates that a reading has
exceeded the hardware limit.
Bit B12, Buffer Quarter Full (BQF) — Set bit indicates that the trace buffer is
one-quarter full.
Bits B12 ( full) and B13 ( full) are not intended to be used with buffer sizes
smaller than four readings.
Bit B13, Buffer Three-Quarter Full (BTF) — Set bit indicates that the trace
buffer is three-quarters full.
Bit B14, Master Limit (ML) — Set bit indicates that one or more of the other limits
have been reached or exceeded.
Bit B15 — Not used.
(Figure
11-6) are described as follows:
Section 6
for details).
11-15
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