FUTEK IPM650 Series - Manual (Page 118)

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10 Appendix D TEDS IEEE 1451.4 Introduction
10.1 What is TEDS?
Plug and play sensor hardware and software makes configuring a smart TEDS sensor as easy as plugging
a mouse into a PC. Efficiency and productivity has greatly improved due to the elimination of manual
sensor configuration.
10.2 Basic Concept
TEDS is at the heart of the new universally accepted IEEE1451.4 standard for delivering plug and play
capabilities to analog measurements and test instruments. In essence, information in a Transducer
Electronic Data Sheet, (TEDS), provides instruments with critical sensor calibration information allowing
for accurate and precise measurements every time.

TEDS works in a similar way in which USB computer peripherals immediately work when a USB
device is connected.

TEDS enabled equipment may be swapped out without a recalibration, saving time and money.

TEDS holds information such as sensor manufacturer, model and serial numbers, and more
importantly, all of the calibration settings determined by the manufacturer.
10.3 How it works
Plug and play is a data acquisition technology that can simplify the configuration of automated
measuring systems by making a sensor’s unique identification data available electronically. As
implemented according to IEEE P1451.4, data in the form of a transducer electronic data sheet (TEDS) is
burned on an electrically erasable programmable read only memory (EEPROM) chip located on the
sensor, so when a properly adapted signal conditioner interrogates the sensor, it can interpret the self
identification data. This technology provides a great benefit by eliminating the need for a traditional
paper calibration sheets. In addition, it can simplify labeling and cabling problems, as well as inventory
control; by letting you burn the location data onto the chip when installing a sensor. Finally, because all
sensors that are produced according to the standard will carry the same basic identically formatted self-
identification information, you will be able to use the sensors and applicable signal conditioners
interchangeably across manufacturers.