KROHNE GFC 300 FOUNDATION FIELDBUS - Manual (Page 31)

OPERATION
4
31
GFC 300
www.krohne.com 07/2012 - 4001866001 - AD GFC 300 FF R01 en
Unacknowledged R/W A discrete enumeration which is set to "Unacknowledged"
when an alarm occurs, and set to "Acknowledged" by a write
from a human interface device or other entity which can
acknowledge that the alarm/event has been noticed.
Uninitialized
Setting:
Uninitialized / Acknowledged / Unacknowledged
Update State R A discrete enumeration which gives an indication of whether
the alert has been reported.
Uninitialized
Setting:
Uninitialized / Update reported / Update not reported
Time Stamp R The time when evaluation of the block was started and a
change in alarm/event state was detected that is unreported.
The time stamp value will be maintained constant until alert
confirmation has been received - even if another change of
state occurs. Time stamp records the time when parameter
was updated.
Uninitialized
Setting:
MM / DD / YY (Month / Day / Year)
HH:MM:SS (Hour:Minute:Second)
Static Revision R The static revision of the block whose static parameter was
changed and is being reported. It is possible for the present
value of static revision to be greater than this because static
can be changed at any time.
0
Setting:
0…65535
Relative Index R The OD index of the static parameter whose change caused
this alert, minus the FB starting index. If the update event was
caused by a write to multiple parameters at the same time,
then this attribute will be zero.
0
Setting:
0…65535
COLLECTION_ COLLECTION_ COLLECTION_ COLLECTION_
DIRECTORY DIRECTORY DIRECTORY DIRECTORY
Collection Collection Collection Collection
Directory Directory Directory Directory
A directory that specifies the number, starting indices and DD
Item IDs of the data collections in each transducer within a
Transducer Block.
-
PRIMARY_VALUE_ PRIMARY_VALUE_ PRIMARY_VALUE_ PRIMARY_VALUE_
TYPE1 TYPE1 TYPE1 TYPE1
Primary Value Primary Value Primary Value Primary Value
Type1 Type1 Type1 Type1
R The type of measurement represented by the primary value.
For example: mass flow, absolute pressure, differential
temperature
Volumetric flow
PRIMARY_VALUE_ PRIMARY_VALUE_ PRIMARY_VALUE_ PRIMARY_VALUE_
1111
volume flow volume flow volume flow volume flow
The measured volume flow 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_
RANGE_1 RANGE_1 RANGE_1 RANGE_1
volume flow range volume flow range volume flow range volume flow 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
Parameter Parameter Parameter Parameter
DD name Access Description and settings Initial Value