11 Supplement
11.2 Information on Foundation Fieldbus
Block diagram, measured value processing
The following illustration shows the Transducer Block and Function block in simplified form.
Fig. 54: Transducer Block VEGADIF 65
TB Transducer Block
AI
Function Block (AI =Analogue Input)
Diagram, adjustment
The following illustration shows the function of the adjustment:
Fig. 55: Adjustment VEGADIF 65
Parameter list
The following list contains the most important parameters and their meaning:
90
Sensor mounting
adjustment
correction
Sensor_Value
bar
Temperature
Secondary
Secondary
Value 1
Value 2
DIRECT
INDIRECT
INDIRECT
SQRT
FIELD-VALUE
AI 2
Channel = 1: Primary Value
Channel = 2: Secondary Value 1
Channel = 3: Secondary Value 2
AI 3
Channel = 4: Temperature
Secondary_value_2
100 %
0 %
scale_in_0 scale_in_100
scale_in_0
0
%
-0,500
bar
Linearization
%
Lin%
TB
Primary
Value
t
i
PV
Out
AI 1
Sensor_value
scale_in_100
100
%
0,500
VEGADIF 65 • Foundation Fieldbus