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2 foundation fieldbus, Block diagram, measured value processing, Diagram, adjustment – VEGA VEGACAL 67 Foundation Fieldbus User Manual

Page 40

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40

10 Supplement

VEGACAL 67 • Foundation Fieldbus

31760-EN-130917

Ʋ Aluminium and stainless housing, in-

vestment casting (optionally available)

IP 66/IP 68 (1 bar)

Overvoltage category

III

Protection class

II

10.2 Foundation Fieldbus

Block diagram, measured value processing

The following illustration shows the Transducer Block (TB) and Function block (FB) in simplified

form.

t

i

Simulate

ALARMS

Out

PV

FIELD-VALUE

Mode & Status

PVF-

TIM

E

LO

W

-CU

TO

FF

L-

TYPE

OUT

-SC

ALE

PV

-SC

ALE

DIRECT

INDIRECT

INDIRECT

SQRT

pF

%

Lin%

Primary

Value

Secondary

Value 2

Secondary

Value 1

AI 2

AI 1

TB

Sensor_Value

min/max

adjustment

Linearization

Channel = 1: Primary Value

Channel = 2: Secondary Value 1

Channel = 3: Secondary Value 2

Fig. 21: VEGACAL 67 measured value processing

Diagram, adjustment

The following illustration shows the function of the adjustment: