Glossary
SC-2345/2350 Carrier User Manual
G-8
ni.com
TEDS Class I sensor
a smart TEDS sensor with a constant-current powered transducer with
a two-wire interface such as an accelerometer. Class 1 transducers also
include diodes or analog switches with which the multiplexing of the
analog signal with the digital TEDS information on the single-pair of
wires is possible. The digital portion of the mixed-mode interface
(Class 1 or Class 2) is based on the 1-Wire protocol from Maxim/Dallas
Semiconductor
TEDS Class II sensor
a smart TEDS sensor with separate wires for the analog and digital portions
of the TEDS mixed-mode interface. The analog input/output of the
transducer is left unmodified, and the digital TEDS circuit is added in
parallel, such as thermocouples, RTDs and bridge-based sensors. The
digital portion of the mixed-mode interface (Class 1 or Class 2) is based
on the 1-Wire protocol from Maxim/Dallas Semiconductor.
For more information, refer to
Maxim/Dallas Semiconductor
1-Wire Protocol
.
thermocouple
a temperature sensor created by joining two dissimilar metals. The junction
produces a small voltage as a function of the temperature.
threshold
a reference voltage, that when compared to another voltage, triggers an
event
TRIG
trigger signal
V
V
volts
V
COM
voltage input signal reference
V
DC
volts direct current
V
IN
voltage input signal
virtual TEDS
Transducer Electronic Data Sheet, not directly built into the transducer
itself, but accessible through a computer file, which has been downloaded
from the internet or created locally
V
SS
voltage supply signal