Keithley 2651A Reference Manual page 631

Model 2651A High Power System SourceMeter® Instrument Reference Manual
Usage
enableRegister = status.system5.condition
enableRegister = status.system5.enable
enableRegister = status.system5.event
enableRegister = status.system5.ntr
enableRegister = status.system5.ptr
status.system5.enable = enableRegister
status.system5.ntr = enableRegister
status.system5.ptr = enableRegister
enableRegister
Details
In an expanded system (TSP-Link), these attributes are used to read or write to the system summary registers.
They are set using a constant or a numeric value, but are returned as a numeric value. The binary equivalent of
the value indicates which register bits are set. In the binary equivalent, the least significant bit is bit B0, and the
most significant bit is bit B15. For example, if a value of 1.30000e+02 (which is 130) is read as the value of the
condition register, the binary equivalent is 0000 0000 1000 0010. This value indicates that bit B1 and bit B7 are
set.
B15 B14
** >
0 0
* Least significant bit
** Most significant bit
For information about .condition, .enable, .event, .ntr, and .ptr registers, refer to
2) and Enable and transition registers
meanings:
Bit Value
B0 Not used
B1
status.system5.NODE57
B2
status.system5.NODE58
B3
status.system5.NODE59
B4
status.system5.NODE60
B5
status.system5.NODE61
B6
status.system5.NODE62
B7
status.system5.NODE63
B8
status.system5.NODE64
B9-B15 Not used
As an example, to set bit B1 of the system summary 5 enable register, set status.system5.enable =
status.system5.NODE57.
In addition to the above constants, enableRegister can be set to the numeric equivalent of the bit to set. To
set more than one bit of the register, set enableRegister to the sum of their decimal weights. For example, to
set bits B1 and B4, set enableRegister to 18 (which is the sum of 2 + 16).
2651A-901-01 Rev. A / March 2011
The system summary 5 register's status. A zero (0) indicates no bits set; other
values indicate various bit settings
B13 B12 B11 B10
> > > >
0 0 0 0
(on page E-18). The individual bits of this register have the following
B9 B8 B7 B6
> > > >
0 0 1 0
Description
Not applicable
Bit B1 decimal value: 2
Bit B2 decimal value: 4
Bit B3 decimal value: 8
Bit B4 decimal value: 16
Bit B5 decimal value: 32
Bit B6 decimal value: 64
Bit B7 decimal value: 128
Bit B8 decimal value: 256
Not applicable
Section 7: Command reference
B5 B4 B3 B2
> > > >
0 0 0 0
Status register sets
B1 B0
> *
1 0
(on page E-
7-323