Section 9: TSP command reference Series 2600B System SourceMeter® instrument Reference Manual
9-286 2600BS-901-01 Rev. F/August 2021
Usage
measurementRegister = status.measurement.current_limit.condition
measurementRegister = status.measurement.current_limit.enable
measurementRegister = status.measurement.current_limit.event
measurementRegister = status.measurement.current_limit.ntr
measurementRegister = status.measurement.current_limit.ptr
status.measurement.current_limit.enable = measurementRegister
status.measurement.current_limit.ntr = measurementRegister
status.measurement.current_limit.ptr = measurementRegister
The status of the measurement event current limit summary register; a zero (0)
indicates no bits set (also send 0 to clear all bits); other values indicate various
bit settings
Details
These attributes are used to read or write to the measurement event current limit summary registers.
Reading a status register returns a value. The binary equivalent of the returned value indicates which
register bits are set. The least significant bit of the binary number is bit B0, and the most significant bit
is bit B15.
For example, assume value 6 is returned for the enable register. The binary equivalent is
0000 0000 0000 0110. This value indicates that bit B1 (SMUA) and bit B2 (SMUB) are set.
For information about .condition, .enable, .event, .ntr, and .ptr registers, refer to Status register set
contents (on page 12-1) and Enable and transition registers (on page 12-19). The individual bits of
this register are defined in the following table.
status.measurement.current_limit.SMUA
Set bit indicates that the SMU A current
limit was exceeded.
Bit B1 decimal value: 2
Binary value: 0000 0010
status.measurement.current_limit.SMUB
This bit is only available on the 2602B,
2604B, 2612B, 2614B, 2634B, and 2636B.
Set bit indicates that the SMU B current
limit was exceeded.
Bit B2 decimal value: 4
Binary value: 0000 0100
As an example, to set bit B1 of the measurement event current limit summary enable register, set
status.measurement.current_limit.enable =
status.measurement.current_limit.SMUA.
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 B2, set measurementRegister to 6 (which is
the sum of 2 + 4).
Example
status.measurement.current_limit.enable = status.measurement.current_limit.SMUA
Sets the SMUA bit of the Measurement Event Current Limit Summary Enable Register.
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