IEEE Std 1451.4 is a member of the IEEE 1451 family
of smart transducer standards.
Several data networks are in general use throughout
industry, along with a myriad of industrial transducers,
both sensors and actuators. Often, a user must turn
to a single manufacturer for networks, transducers
and controls, to insure compatible operation. For
that reason it would make tremendous economic sense
to enable any transducer to communicate using any
data network. The concept of Smart Tansducers (sensors
and actuators) has, since 1993, been developed to
make this a reality.
Working group meetings held during early 1996 demonstrated
the need for a standard adapted to very small sensors
and users of distributed arrays of sensors. The emerging
IEEE P1451.2 smart transducer interface model (STIM)
definition was for several reasons not well adapted
for tiny sensors. Following study group meetings through
late 1996 and 1997, the IEEE sanctioned the IEEE P1451.4
standard working group for mixed-mode analog sensors
with compact transducer electronic data sheet (TEDS),
late in the fall of 1997.
IEEE P1451.4 was accepted as a full-use standard,
IEEE Std 1451.4-2004, by the IEEE Standards Association,
May 14, 2004.
Distinguishing features of IEEE Std 1451.4 are:
A mixed-mode communication interface (MMI), which
allows digital data and analog waveforms to alternately
occupy a single connection, with analog bandwidth
not limited by sampling. Also defined are separate
data and analog connections for transducer applications
not adapted to the shared connection.
A transducer electronic data sheet (TEDS) definition,
adapted to very small memories through the use of
templates and containing identification and calibration
data.
A template description language (TDL) allowing
ongoing development of templates for diverse transducer
types.
A rich template collection adapting 1451.4 to
a large family of transducers.
A transducer block definition allowing 1451.4
to adapt to the 1451.1 object model.
Sevices provided by IEEE-RA in this website
Users of IEEE 1451.4 wishing to manufacture compliant
transducers must obtain an IEEE 1451.4 manufacturer
ID number from IEEE-RA (see IEEE Std 1451.4.2004
subclause 5.1.1, Table 2). A request form is provided
here.
Manufacturers of IEEE 1451.4 compliant transducers
wishing to implement their own TEDS devices, instead
of purchasing them commercially, must include within
each device produced, a unique registration number
(URN) to make possible access to a single device
in a multi-drop architecture. (see IEEE Std 1451.4.2004
subclause 5.4, figure 2) Requests for blocks of
4096 URN numbers from IEEE-RA may be made here
.
Users wishing to publish a new template (see IEEE
Std 1451.4.2004 subclause 6.1), not contained in
the IEEE listing of standard 1451.4 templates, or
a TDL item or property not previously used, may
request publication here.
Site Map
NOTICE: As the end user, there may be intellectual
property issues associated with the use of the Unique
Registration Numbers (URN) that you are responsible
to ascertain and satisfy. The issues may require
that you purchase a license(s) and pay a royalty
to third parties who claim ownership to said intellectual
property. It is strongly recommended that before
you purchase a URN, you review the IEEE Standards
Association patent database at http://standards.ieee.org/db/patents/index.html
to obtain some of the information that may be relevant
to obtaining your URN.
