Electrical connections
Transducer connection
DMP41 A03470_07_E00_00 HBM: public 31
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
whether 1-Wire® or zero-wire is used is displayed (è see also Chapter
7.2.9 “TID (Transducer Identification)”, Page 78).
This is also shown in the channel status overview (è 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
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