KROHNE UFC 400 FOUNDATION FIELDBUS EN - Manual (Page 64)

4
OPERATION
64
UFC 400
www.krohne.com 05/2013 - 4002813701 - AD FF UFC 400 R01 en
BKCAL_HYS BKCAL_HYS BKCAL_HYS BKCAL_HYS
Back Calculation Back Calculation Back Calculation Back Calculation
Hysteresis Hysteresis Hysteresis Hysteresis
R/W Limits the minimum output value for modes other than
"Manual". The limit status is turned off, expressed as a
percent of the span of the output.
0.5
Setting:
0.0...50.0%
BKCAL_IN BKCAL_IN BKCAL_IN BKCAL_IN
Back Calculation Back Calculation Back Calculation Back Calculation
Input Input Input Input
R/W The value and status used for backwards tracking of the
output, provided by a link to the back calculation output
parameter of a downstream block.
-
Status R/W Status of BKCAL_IN -
Value R/W Value of BKCAL_IN -
BKCAL_IN BKCAL_IN BKCAL_IN BKCAL_IN
Back Calculation Back Calculation Back Calculation Back Calculation
Input Input Input Input
R The output value and status provided to an upstream block for
output tracking when the loop is broken or limited, as
determined by the status bits. This information is used to
provide bumpless transfer to closed loop control and to
prevent windup under limited conditions when that becomes
possible.
-
Status R Status of BKCAL_OUT -
Value R Value of BKCAL_OUT -
BLOCK_ALM BLOCK_ALM BLOCK_ALM BLOCK_ALM
Block Alarm Block Alarm Block Alarm Block Alarm
R/W The block alarm is used for all configuration, hardware,
connection failure or system problems in the block. The cause
of the alert is entered in the subcode field. The first alert to
become active will set the "Active" status in the "Status"
attribute. As soon as the "Unreported" status is cleared by the
alert reporting task, another block alert may be reported
without clearing the "Active" status, if the subcode has
changed.
-
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
Alarm State R A discrete enumeration which gives an indication of whether
the alert is active and whether it has been reported.
Uninitialized
Setting:
• Uninitialized
• Clear - reported: Alarm not active and reported
• Clear - not reported: Alarm not active and not reported
• Active - reported: Alarm active and reported
• Active - not reported: Alarm active and 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.
Uninitialized
Setting:
MM / DD / YY (Month / Day / Year)
HH:MM:SS (Hour:Minute:Second)
Parameter Parameter Parameter Parameter
DD name Access Description and settings Initial Value