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VEGA VEGAPULS 68 (≥ 2.0.0 - ≥ 4.0.0) Foundation Fieldbus User Manual

Page 71

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71

11 Supplement

VEGAPULS 68 • Foundation Fieldbus

36538-EN-121011

m(d)

%

Lin%

Primary

Value

Secondary

Value 2

Secondary

Value 1

TB

Sensor_Value

min/max

adjustment

Linearization

Fig. 54: Schematic presentation Transducer Block (TB)

Function block Analog Input (AI)

The function block "Analog Input (AI)" takes the original measured value selected by a Channel

Number and makes it available to additional function blocks on its output.

Fig. 55: Schematic presentation function block Analog Input (AI)

Function block Discret Input (DI)

The function block "Discret Input (DI)" takes the original measured value selected by a Channel

Number and makes it available to additional function blocks on its output.

Fig. 56: Schematic presentation function block Discret Input (DI)

Function block PID Control

The function block "PID Control " is a key component for various tasks in the process automation

and is used universally. PID blocks can be cascaded if this is necessary or requested due to differ-

ent time constants with the primary and secondary process measurement.