2400 Series SourceMeter
®
User’s Manual Status Structure 15-15
Questionable Event Register
The used bits of the Questionable Event Register (shown in Figure 15-7) are described as
follows:
• Bits B0 through B7 — Not used.
• Bit B8, Calibration Summary (Cal) — Set bit indicates that an invalid calibration
constant was detected during the power-up sequence. This error will clear after
successful calibration of the instrument.
• Bits B9 through B13 — Not used.
• Bit B14, Command Warning (Warn) — Set bit indicates that a Signal Oriented
Measurement Command parameter has been ignored.
• Bit B15 — Not used.
Figure 15-7
Questionable event status
Questionable
Event Enable
Register
&
&
OR
To QSB of Status
Byte Register.
(See Figure 15-3.)
Warn = Command Warning
Cal = Calibration Summary
& = Logical AND
OR = Logical OR
—
(B7 - B0)
CAL
(B8)
—
(B13 - B9)
—
(B15)
Warn
(B14)
Questionable
Condition
Register
Questionable
Event Register
—
(B7 - B0)
CAL
(B8)
—
(B13 - B9)
—
(B15)
Warn
(B14)
—
(B7 - B0)
CAL
(B8)
—
(B13 - B9)
—
(B15)
Warn
(B14)
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