Keithley S530 User Manual

S530/S540 KTE Linear Parametric Test Library (LPTLib) User's Manual Section 3:
LPTLib command reference
S530-900-01 Rev. E / September 2017 3-29
forceX
This command programs a sourcing instrument to generate a voltage or current at a specific level.
Usage
int forcei(int instr_id, double value);
int forcev(int instr_id, double value);
instr_id
The instrument identification code; SMUn, CMTRn; for forcev it can also be CMTR1H
and
CMTR1L
(see
Details
)
value
The level of the bipolar voltage or current forced in volts or amperes
Details
The forcev and forcei commands generate either a positive or negative voltage, as directed by
the sign of the value argument. With both forcev and forcei commands:
• Positive values generate positive voltage or current from the high terminal of the source relative
to the low terminal.
• Negative values generate negative voltage or current from the high terminal of the source relative
to the low terminal.
The forcev command accepts both CMTR1H and CMTR1L for the instr_id parameter to support
differential CVU biasing. By forcing one polarity on CMTR1H and an opposite polarity on CMTR1L,
total bias can be up to 60 V, centered in relationship to ground. Note that it is not possible to exceed ±
30 V in relationship to ground.
When using the limitX, rangeX, and forceX commands on the same source at the same time in a
test sequence, call the limitX and rangeX commands before the forceX command.
The ranges of currents and voltages available from a voltage or current source vary with the
instrument type. For more detailed information, refer to the hardware manual for each instrument.

Keithley S530 Specifications

General

Brand	Keithley
Model	S530
Category	Test Equipment
Language	English