
Linear
Mode
An operating mode of the
characterizer whereby values
are entered into ProG-chr-K1
through K26 parameter con-
stants as 13 ordered pairs (A
input, analog output) to spec-
ify a 12 segment linear ap-
proximation of the analog
input signal. Constants K1-
K13 are the A input variables,
and constants K14-K26 are
the analog output variables.
Pairs are matched K1, K14;
through K13, K26. The input
variables must be monotoni-
cally increasing.
2DI/2DO
Module
An option module that at-
taches to the rear of the
53SL6000 controller case to
provide two additional dis-
crete inputs (DI3 and DI4)
and two additional discrete
outputs (DO3 and DO4).
Universal
Analog
Input
Module
An option module that at-
taches to the rear of the
53SL6000 controller case
that provides analog input 3
or analog inputs 3 and 4. A
universal analog input mod-
ule can accept high voltage
level, low voltage level, ther-
mocouple, resistive thermal
device (RTD), frequency, and
pulse input types. Input sig-
nal characterization and
shaping are performed by the
module, such as data lineari-
zation, cold junction compen-
sation (CJC), first order
digital filtering, and engineer-
ing unit conversion.
Watchdog
A controller failure indicating
the controller central process-
ing unit (CPU) is malfunction-
ing or that another failure has
occurred that manifests itself
as a CPU failure. Watchdog
has a dedicated faceplate
LED that illuminates when
this indicator is active.
53SL6000 Instruction Manual Appendix A. Glossary
A-6
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