Operation – KROHNE GFC 300 FOUNDATION FIELDBUS User Manual
Page 34
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OPERATION
34
GFC 300
www.krohne.com
07/2012 - 4001866001 - AD GFC 300 FF R01 en
VALUE
Value
R
A numerical quantity entered by a user or calculated by the
algorithm.
-
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
RANGE_5
RANGE_5
RANGE_5
RANGE_5
enthalpy flow
enthalpy flow
enthalpy flow
enthalpy flow
range
range
range
range
The high and low range limit values, the engineering units
code and the number of digits to the right of the decimal point
to be used to display the Primary Value.
-
EU_100
Engineering Unit
100
R
The engineering unit value which represents the upper end of
range of the associated Block Parameter.
NaN
EU_0
Engineering Unit 0
R
The engineering unit value which represents the lower end of
range of the associated Block Parameter.
-NaN
UNITS_INDEX
Units Index
R/W
Device Description units code index for the engineering unit
descriptor for the associated block value.
W
Settings:
W; GW; MW; kW; mW; Mcal/h; MJ/h; Btu/h; kcal/s; kcal/min;
kcal/h; kcal/d; Mcal/s; Mcal/min; Mcal/d; kJ/s; kJ/min; kJ/h;
kJ/d; MJ/s; MJ/min; MJ/d; Btu/s; Btu/min; Btu/day
DECIMAL
Decimal (Point)
R
The number of digits to the right of the decimal point which
should be used by an interface device in displaying the
specified parameter.
0
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
TYPE6
TYPE6
TYPE6
TYPE6
Primary Value
Primary Value
Primary Value
Primary Value
Type6
Type6
Type6
Type6
R
The type of measurement represented by the primary value.
For example: mass flow, absolute pressure, differential
temperature
specific enthalpy
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
6666
specific enthalpy
specific enthalpy
specific enthalpy
specific enthalpy
The measured specific enthalpy value and status available to
the Function Block.
-
STATUS
Status
R
Digital transducers, unlike their analogue versions, can detect
faults that make the measurement bad or prevent the
actuator from responding. This additional, valuable
information will be passed along with each transmission of a
data value in the form of a status attribute.
-
VALUE
Value
R
A numerical quantity entered by a user or calculated by the
algorithm.
-
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
6_
6_
6_
6_
RANGE
RANGE
RANGE
RANGE
specific enthalpy
specific enthalpy
specific enthalpy
specific enthalpy
range
range
range
range
The high and low range limit values, the engineering units
code and the number of digits to the right of the decimal point
to be used to display the Primary Value.
-
EU_100
Engineering Unit
100
R
The engineering unit value which represents the upper end of
range of the associated Block Parameter.
NaN
EU_0
Engineering Unit 0
R
The engineering unit value which represents the lower end of
range of the associated Block Parameter.
-NaN
UNITS_INDEX
Units Index
R/W
Device Description units code index for the engineering unit
descriptor for the associated block value.
kJ/kg
Settings:
J/kg; MJ/kg; kJ/kg; kcal/kg; Btu/lb; J/gm
DECIMAL
Decimal (Point)
R
The number of digits to the right of the decimal point which
should be used by an interface device in displaying the
specified parameter.
2
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
PRIMARY_VALUE_
TYPE7
TYPE7
TYPE7
TYPE7
Primary Value
Primary Value
Primary Value
Primary Value
Type7
Type7
Type7
Type7
R
The type of measurement represented by the primary value.
For example: mass flow, absolute pressure, differential
temperature
density
Parameter
Parameter
Parameter
Parameter
DD name
Access
Description and settings
Initial Value