Keithley 3700A Series, Справочное руководство

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Series 3700A System Switch/Multimeter Reference Manual Section 11: TSP command reference
3700AS-901-01 Rev. D/June 2018 11-377
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
** > > > > > > > > > > > > > > *
0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
* Least significant bit
** Most significant bit
In addition to the above constants,
measurementRegister
can be set to the decimal equivalent of
the bit to set. To set more than one bit of the register, set
measurementRegister
to the sum of
their decimal weights. For example, to set bits B1 and B8, set
measurementRegister
to 258
(which is the sum of 2 + 256).
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
status.measurement.enable = status.measurement.BAV
Sets the BAV bit of the measurement
event enable register.
Also see
Measurement summary bit (Measurement event register) (on page C-4)
status.node_enable
This attribute stores the system node enable register.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes Status reset Not saved 0
Usage
nodeEnableRegister = status.node_enable
status.node_enable = nodeEnableRegister
nodeEnableRegister
The status of the system node enable register; a zero (0) indicates no bits set (also
send 0 to clear all bits); other values indicate various bit settings
Details
This attribute is used to read or write to the system node enable register. Reading the system node
enable register returns a value. The binary equivalent of the value of this attribute indicates which
register bits are set. In the binary equivalent, the least significant bit is bit B0, and the most significant
bit is bit B7. For example, if a value of
1.02
(which is 129) is read as the value of this
register, the binary equivalent is 1000 0001. This value indicates that bit B0 and bit B7 are set.