
C-20
Return to
2600AS-901-01 Rev. B / September 2008
Appendix C: Status Model
Series 2600A System SourceMeter® Instruments Reference Manual
Operation Status Register
This register set feeds to bit B7 (OSB) of the Status Byte. The bits used in the Operation Status
Register set are described as follows:
•
Bit B0, Calibrating (CAL):
Set bit indicates that one or more channels are calibrating.
•
Bit B3, Sweeping (SWE):
Set bit indicates that one or more channels are sweeping.
•
Bit B4, Measuring (MEAS):
Bit will be set when taking an overlapped measurement, but it
will not set when taking a normal synchronous measurement.
•
Bit B10, Trigger Overrun (TRGOVR):
Set bit indicates that an enabled bit in the Operation
Status Trigger Overrun Summary register is set.
•
Bit B11, Remote Summary (REM):
Set bit indicates that an enabled in the Operation
Status Remote Summary Register is set.
•
Bit B12, User (USER):
Set bit indicates that an enabled bit in the operation status user
register is set.
•
Bit B13, Instrument Summary (INST):
Set bit indicates that an enabled bit in the operation
status instrument summary register is set.
•
Bit B14, Program Running (PROG):
Set bit indicates that a program is running.
For more information on the Operation Status Registers, refer to
and the
charts in this appendix.
Questionable Event Registers
, there are seven register sets associated with Questionable Event Status.
Commands are summarized in the
. Keep in mind that bits can also be set by
using numeric parameter values. For details, see
Programming 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
. For example, the following
command will read the questionable enable register:
print(status.questionable.enable)
For more information on the Questionable Event Registers, refer to
and the
charts in this appendix.
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 B9, Unstable Output (UO):
Set bit indicates that an unstable output condition was
detected.
•
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.
For more information on the Questionable Status Register, refer to
and the
charts in this appendix.