Vega VEGABAR 66 Operating Instructions Manual page 61

Fig. 32: Transducer Block VEGABAR 66
TB Transducer Block
AI Function Block (AI =Analogue Input)
Diagram, adjustment
The following illustration shows the function of the adjustment:
Fig. 33: Adjustment VEGABAR 66
Parameter list
The following list contains the most important parameters and their meaning:
•
primary_value
– Process Value after min/max-adjustment and linearization. Selected as input to AIFB by setting
'Channel' = 1. Unit derives from 'Primary_value_unit'
•
primary_value_unit
– Unit code of 'Primary_value'
– %
•
secondary_value_1
– Process pressure. Selected as input to AIFB by setting 'Channel' = 2. Unit derives from 'Sec-
ondary_value_1_unit'
•
secondary_value_1_unit
– Unit code of 'Secondary_value_1'
VEGABAR 66 • Foundation Fieldbus
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
10 Supplement
61