2 foundation fieldbus, 10 .2 foundation fieldbus – VEGA VEGAFLEX 66 (-20…+250°C) Foundation Fieldbus User Manual

Page 53

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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-TIME

LOW-CUTOFF

L-TYPE

OUT-SCALE

PV-SCALE

DIRECT

INDIRECT

INDIRECT

SQRT

m(d)

%

Lin%

Primary

Value

Secondary

Value 2

Secondary

Value 1

AI 2

AI 1

TB

Dist. Interface

Dist. Level

min/max

adjustment

Linearization

Channel = 1: Primary Value
Channel = 2: Secondary Value 1
Channel = 3: Secondary Value 2 (Distance Interface)
Channel = 5: Total Sensor Value (Distance Level)

Fig. 27: VEGAFLEX 66 measured value processing

VEGAFLEX

66 • Foundation Fieldbus

53

10 Supplement

34172

-

EN

-100426

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