Supplementary Documentation
Page 23 of 44
IFC090, IFC090 i with FF
IFC090-FF Block Description
IFC090 FF 01/2005
KROHNE Messtechnik GmbH & Co. KG · Ludwig-Krohne-Str. 5
D-47058 Duisburg
Tel.: 0203-301 309
Fax: 0203-301389 · E-mail: [email protected]
Parameter
Access
Description
CLOCK_PER R/W
CLOCK_PER specifies the time after which the Integrator
OUT
value should
be reset, if parameter
INTEG_TYPE
is set to
‘Periodic’
.
see also:
INTEG_TYPE
GOOD_LIM R/W
GOOD_LIM specifies the limit for
Good
status of parameter
OUT
. If the
percentage of
Good
input gets below this limit (and above
UNCERT_LIM
),
the status of
OUT
turns from
Good
to
Uncertain
(unless GOOD_LIM equals
UNCERT_LIM
).
see also:
UNCERT_LIM
GRANT_DENY R/W
Options for controlling access of host computer and local control panels to
operating, tuning and alarm parameters of the block.
NOTE:
This parameter is not supported by IFC090-FF
IN_1 R
Primary block input with status coming (normally) from another block’s output
parameter.
see also:
IN_2
IN_2 R
Secondary block input with status, coming (normally) from another block’s
output parameter.
see_also:
IN_1
INTEG_OPTS R/W
INTEG_OPTS is to be used to specify several integration options as type of
input used in each input, flow direction to be considered in the totalization,
status to be considered in the totalization and if the totalizatiion residue shall
be used in the next batch after a reset. The following INTEG_OPTS are
possible:
Input 1 accumulate
IN_1 is used as pulse (otherwise as rate)
Input 2 accumulate
IN_2 is used as pulse (otherwise as rate)
Flow forward
only positive net flow will be taken into account
for totalization (
NOTE
:
default settig for Integrator
1
)
Flow reverse
only negative net flow will be taken into account
for totalization (
NOTE:
default settig for Integrator
2
)
Use Uncertain
IN_1
and
IN_2
input will be taken into account
even if their states are
Uncertain
(otherwise the
value with the last
Good
status will be taken)
Use BAD Input
IN_1
or
IN_2
with
BAD
status will be interpreted
as
Good
(NOTE: only the status is interpreted as
Good
, the value isn’t used for totalization, but the
good one, i.e.
RTOTAL
isn’t affected with this
setting.
Carry
integration after a reset starts with the init value,
but with the residual after the trip value.
Add zero if Bad
If one of the input (
IN_1
or
IN_2
) statuses are
BAD
, not the last
Good
value is used for
totalization, but zero (0).
Confirm reset
after a manual reset of totalization, the next
manual reset must be preceded by a reset
confirmation by the control system.
Generate reset event in case of reset (automatic or manual), an event
notification will be sent to the control system.
see also: INTEG
_TYPE
