2. TEDS IEEE 1451.4 INTRODUCTION
The SSI Smart Sensor Indicator is a TEDS IEEE 1451.4 Plug and Play Smart Load Cell
Meter.
TEDS, or Transducer Electronic Data Sheet, is a set of electronic data in a standardized
format defined within the IEEE 1451.4 standard. The data is stored in an EEPROM with the
sensor. It specifies what type of sensor is present, describes its interface, and gives tech-
nical information such as sensitivity, bridge type, and excitation.
The SSI automatically detects when a TEDS IEEE 1451.4 compliant Load Cell, Torque
Sensor or Pressure Transducer is connected. Once a TEDS sensor is detected, the SSI
displays “TEDS”, reads the EEPROM, stores the information in memory, and performs an
automatic configuration.
The built-in sensor-related EEPROM may be any of the following types: DS1973/DS2433,
DS2431 or DS1971/DS2430A. The automatic system configuration function performs all
steps needed to calibrate the TEDS IEEE 1451.4 compliant sensor and SSI as a system.
This includes the configured precision of either 32 bits, 19 bits or 11 bits.
Using the SSI with a TEDS IEEE 1451.4 compliant Load Cell, Torque Sensor or Pressure
Transducer is as easy as plugging a mouse into a computer, making it a true plug-and-play
experience.
The SSI may also be used with a non-TEDS sensor requiring manual configuration and
calibration.
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