Keithley System SourceMeter 2601B, Reference Manual

Page: 650 / 864

Section 7: TSP command reference Series 2600B System SourceMeter® Instrument Reference Manual
7-310 2600BS-901-01 Rev. B / May 2013
As an example, to set bit B8 of the questionable status SMU A summary enable register, set
status.questionable.instrument.smua.enable =
status.questionable.instrument.smua.CAL
.
In addition to the above constants,
questionableRegister
can be set to the numeric equivalent of the bit to
set. To set more than one bit of the register, set
questionableRegister
to the sum of their decimal weights.
For example, to set bits B8 and B9, set
questionableRegister
to 768 (which is the sum of 256 + 512).
Bit B7 B6 B5 B4 B3 B2 B1 B0
Binary value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
Decimal 128 64 32 16 8 4 2 1
Weights
(2
7
) (2
6
) (2
5
) (2
4
) (2
3
) (2
2
) (2
1
) (2
0
)
Bit B15 B14 B13 B12 B11 B10 B9 B8
Binary value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
Decimal 32,768 16,384 8,192 4,096 2,048 1,024 512 256
Weights
(2
15
) (2
14
) (2
13
) (2
12
) (2
11
) (2
10
) (2
9
) (2
8
)
Example
questionableRegister =
status.questionable.instrument.smua.CAL +
status.questionable.instrument.smua.UO
status.questionable.instrument.smua.enable =
questionableRegister
Uses constants to set bit B8
and bit B9 of the
questionable status SMU A
summary enable register.
Also see
Questionable Status Registers (on page E-13)
status.operation.* (on page 7-270)
status.questionable.over_temperature.*
This attribute contains the questionable status over temperature summary register set.
Type TSP-Link accessible Affected by Where saved Default value
Attribute - - - - - - - -
.condition (R) Yes Not applicable Not saved Not applicable
.enable (RW) Yes Status reset Not saved 0
.event (R) Yes Status reset Not saved 0
.ntr (RW) Yes Status reset Not saved 0
.ptr (RW) Yes Status reset Not saved Models 2601B/2611B/2635B: 2 (All bits set)
Models
2602B/2604B/2612B/2614B/2634B/2636B: 6
(All bits set)