Siemens SITRANS TW 7NG3242 Betriebsanleitung Seite 112

Functions / Operation by HART
Per measured value a resettable slave pointer saves the maximum and minimum
peak values long-term in the non-volatile memory The values are then reavailable
after restarting the device. The slave pointers are also updated during the simulation
(see chapter 4.2.18, page 113). Figure 16, page 112 shows the principle of a slave
pointer curve.
Figure 16 Principle display of slave pointers using temperature as an example
Resetting of the slave pointer takes place:
• automatically after another sensor type has been parameterized
• at the user's request
ATTENTION
After reparameterization of the type of connection and completion of the
installation work, the customer must reset the slave pointers.
112
upper slave pointer value
temperature curve
lower slave pointer value
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