KROHNE IFC 090 i Converter FOUNDATION FIELDBUS - Manual (Page 23)

Supplementary Documentation Page 23 of 44
IFC090, IFC090 i with FF
IFC090-FF Block Description
IFC090 FF 01/2006
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