HBK U9C Montageanleitung Seite 27

8.2.3.1 Function
The analog signals of the force transducer are initially digitized, so that they can then be
converted into measured values in Newtons as per the factory settings. Regardless of the
connected master, the sample rate is always 40 kHz, so that even very fast processes
(such as peak force when pressing) can be reliably recorded and evaluated in the elec­
tronics unit. It is possible to store the result of a calibration (as supporting interpolation
points or as coefficients of a second or third degree polynomial) in the sensor in order to
increase the accuracy. In a further scaling step, you can enter any unit and a conversion
factor so that it is possible to determine other physical quantities (e.g. torque while using
a lever arm, or measurements using units other than the ones in the SI system, e.g. lbf).
Fig. 8.2 Signal flow within the sensor electronics. The fields marked in white cannot be
changed/parameterized by the user.
The amplifier module has additional functions, such as digital low-pass filters, a peak
value memory (slave pointer function) or limit value switches (as per the Smart Sensors
Profile).
The electronics permanently monitors the output signal, so you will be warned if any criti­
cal operating states are set. These may be both thermal and mechanical overloads.
The data is transferred to the PLC via an IO-LINK master – in accordance with the stan­
dard IEC 61131-9 (IO-Link). The electric connection is also defined in this standard.
U9C
ELECTRICAL CONNECTION
25