HBM U10M, Mounting Instructions, Page: 25 / 128

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U10M, U10S
A1385-6.2 en/de/fr HBM
7 Electrical connection with TEDS
TEDS (Transducer Electronic Data Sheet) allows you to store the transducer
data (characteristic values) in a chip as per IEEE1451.4. A suitably equipped
amplifier can read the data from this electronic data sheet or calibration certi­
ficate and set itself accordingly.
7.1 TEDS transducer identification
The TEDS module is connected between Pin E (sense lead (-)) and Pin D
(excitation voltage (-)) (Zero‐Wire configuration from HBM). The basis for this
is a DS2433 EEPROM, made by Maxim/Dallas.
HBM provides you with the TEDS Editor program for editing your data. This is
a part of various free HBM programs, e.g. the software MGCplus Assistant or
QuantumX Assistant. In addition, the TEDS can be programmed without an
amplifier using the HBM TEDSdongle device.
7.2 Hierarchy of rights for TEDS
The TEDS Editor uses a hierarchy of rights:
1. Standard rights (USR level)
This level concerns entries that can be modified by any user, and which are
changed subject to their application, for example: Measuring point name,
zero value, filters, etc.
2. Calibration rights (CAL level)
This level concerns entries that a calibration laboratory must be able to
change, if, for example, the sensitivity in a TEDS module has to be updated
after recalibration.
3. Administrator rights (ID level)
Administrator rights in relation to TEDS are needed by the sensor manufac­
turer. In the case of a self‐built sensor or subsequent upgrading with TEDS,
HBM customers can of course also make use of these rights.
Different user rights are needed in order to amend the entries in the so‐called
“templates", and these rights may differ from one entry to the next within a
template. However, when used later with other programs, the software must
also support rights management, otherwise all the entries would be accessible
(the hierarchy of rights specified in the TEDS standard is not monitored by the
TEDS module, and not every software package supports rights management).