Tid (Transducer Identification) - HBM DMP41 Operating Manual

Electrical connections
Transducer connection
4.2.4

TID (Transducer Identification)

TID displays the (worldwide) unique ID of a TEDS module (Transducer ID).
The IEEE standard 1451.4 defines a generally acknowledged process with
which sensors can be identified. The sensor is identified via its data sheet,
which is stored in electronic format in the sensor, cable or plug on a
1-Wire® EEPROM (TEDS - Transducer Electronic Data Sheet). The ampli­
fier communicates with this EEPROM via the serial 1-Wire® interface,
reads out the data sheet and makes the corresponding amplifier settings.
TEDS information is not yet evaluated in the current version, only the
unique ID is read out.
If a transducer with TID is connected, the ID number and information about
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whether 1-Wire® or zero-wire is used is displayed ( see also Chapter
7.2.9 "TID (Transducer Identification)", Page 78).
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This is also shown in the channel status overview ( see Chapter 8
"Error messages/remedial action", Page 101):
TID connected
No TID connected
A special circuit makes it possible to use the existing wires for transferring
TEDS data. This allows the same cables to be used as for transducers with­
out TEDS.
The switch is made between a measuring mode (the lead transfers the ana­
DMP41 31
A03470_07_E00_00 HBM: public