Keithley 2651A, Reference Manual

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Section 7: Command reference Model 2651A High Power System SourceMeter® Instrument Reference Manual
7-278 2651A-901-01 Rev. A / March 2011
A set bit indicates that the specified LAN trigger generated an action overrun when triggered to generate a trigger
packet.
For information about .condition, .enable, .event, .ntr, and .ptr registers, refer to
Status register sets (on page E-
2) and Enable and transition registers (on page E-18). The individual bits of this register have the following
meanings:
Bit Value Description
B0 Not used Not applicable
B1
status.operation.instrument.lan.trigger_overrun.LAN1
Bit B1 decimal value: 2
B2
status.operation.instrument.lan.trigger_overrun.LAN2
Bit B2 decimal value: 4
B3
status.operation.instrument.lan.trigger_overrun.LAN3
Bit B3 decimal value: 8
B4
status.operation.instrument.lan.trigger_overrun.LAN4
Bit B4 decimal value: 16
B5
status.operation.instrument.lan.trigger_overrun.LAN5
Bit B5 decimal value: 32
B6
status.operation.instrument.lan.trigger_overrun.LAN6
Bit B6 decimal value: 64
B7
status.operation.instrument.lan.trigger_overrun.LAN7
Bit B7 decimal value: 128
B8
status.operation.instrument.lan.trigger_overrun.LAN8
Bit B8 decimal value: 256
B9-B15 Not used Not applicable
As an example, to set bit B1 of the operation status LAN trigger overrun enable register, set
status.operation.instrument.lan.trigger_overrun.enable =
status.operation.instrument.lan.trigger_overrun.LAN1
.
In addition to the above constants,
operationRegister
can be set to the numeric equivalent of the bit to set.
To set more than one bit of the register, set
operationRegister
to the sum of their decimal weights. For
example, to set bits B1 and B8, set
operationRegister
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 1024 512 256
Weights (2
15
) (2
14
) (2
13
) (2
12
) (2
11
) (2
10
) (2
9
) (2
8
)
Example
operationRegister =
status.operation.instrument.lan.trigger_overrun.LAN1 +
status.operation.instrument.lan.trigger_overrun.LAN8
status.operation.instrument.lan.trigger_overrun.enable =
operationRegister
Sets bit B1 and bit B8 of
the operation status lan
trigger overrun enable
register using
constants.
Also see
Operation Status Registers (on page E-20)
status.operation.instrument.lan.* (on page 7-275)