Keithley S535, Administrative Manual

Page: 65 / 74

Section 4: Maintenance S535 Wafer Acceptance Test System Administrative Guide
4-14
S535-924-01 Rev. B / January 2019
Setting the number of power line cycles
The default number of power line cycles (NPLCs) for measurements using the S535 can be set in
several ways:
Specify in the
icconfig_<QMO>.ini
file; your field service engineer (FSE) can change this from
the factory default setting (see Setting a custom system speed (on page 4-14))
Specify using the
setmode KI
_
INTGPLC
modifier (see "setmode" and "setmode modifier tables"
in the Keithley Test Environment (KTE) Programmer's Manual (part number S500-904-01) for
details); this setting does not persist through a power cycle
The system default NPLC setting is
0.01
. However, this setting differs for some commands,
source-measure unit (SMU) instruments, and ranges. See NPLC default differences (on page 4-15)
for details.
Setting a custom system speed
The
LEGACY
speed mode has been deprecated in KTE version 5.8.0. If you select this mode, the
default system speed settings are used.
If you need different system speed settings than those set at the factory, you can ask your field
service engineer (FSE) to specify custom speed settings in the
icconfig_<QMO>.ini
file. Systems
upgraded from an older Keithley Test Environment (KTE) version may not have a
[SYSTEM SPEED
MODE]
section in their
icconfig_<QMO>.ini
file. This can be added, but is not necessary unless
you want to change the settings.
The system default NPLC setting is
0.01
. However, this setting differs for some commands,
source-measure unit (SMU) instruments, and ranges. See NPLC default differences (on page 4-15)
for details.