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Series 2600 System SourceMeters Reference Manual
Status Model D-25
Return to
2600S-901-01 Rev. A / May 2006
Questionable Event Registers
As shown in
, there are six register sets associated with Questionable
Event Status. Commands are summarized in
. Keep in mind that bits
can also be set by using numeric parameter values. For details, see “
ming enable and transition registers
” in this appendix.
For example, either of the following commands will set the CAL enable bit (B8):
status.questionable.enable = status.questionable.CAL
status.questionable.enable = 256
When reading a register, a numeric value is returned. The binary equivalent of this
value indicates which bits in the register are set. For details, see “
” in this appendix. For example, the following command will read the
questionable enable register:
print(status.questionable.enable)
Questionable Status Register
This register set feeds to bit B3 (QSB) of the Status Byte. The bits used in the
Questionable Status Register set are described as follows:
•
Bit B8, Calibration (CAL)
— Set bit indicates that calibration is
questionable.
•
Bit B12, Over Temperature (OTEMP)
— Set bit indicates that an over
temperature condition was detected.
• Bit B13, Instrument Summary (INST)
— Set bit indicates that a bit in the
questionable instrument summary register is set.
Questionable Status Calibration Summary
This calibration summary register set feeds to CAL bit B8 of the Questionable
Status Register. Used summary bits for this register include B1 (SMUA) and B2
(SMUB). A set bit indicates that calibration for a SMU (A or B) is questionable.
Questionable Status Over Temperature Summary
This over temperature summary register set feeds to OTEMP bit B12 of the
Questionable Status Register. Used summary bits for this register include B1
(SMUA) and B2 (SMUB). A set bit indicates that an over temperature condition
was detected for a SMU (A or B).
Questionable Status SMU A Summary Register
This SMU summary register set feeds to bit B1 (SMUA) of the Questionable
Status Instrument Summary Register. Used summary bits for this register include
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