KROHNE IFC 090 i Converter FOUNDATION FIELDBUS - Manual (Page 14)

Supplementary Documentation Page 14 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]
4.2 Transducer Block
Table 2 lists the Transducer Block parameters in alphabetical order (this list gives a description of the various
parameters only; see chapter below. for a detailed description depicting how to configure these parameters):
Parameter Access Description
ALERT_KEY R/W Identification number of the plant unit. It helps to identify the location (plant
unit) of an event. The handling of this parameter is up to the control system
or control person, respectively.
BLOCK_ALM R
Display of current block state. Field subcode gives information about the
state current errors. The following errors can occur:
Configuration Error
Block was put Out of Service
The remaining fields give information about the state and the occurrence of
this alarm.
BLOCK_ERR R
Display of active block errors. The following errors are possible:
Out of Service block is in Out of Service mode
Device needs Maintenance now fatal error of IFC090-FF hardware
CAL_MIN_SPAN R
Minimum calibrated span value allowed.
CAL_POINT_HI R/W
Highest calibrated value. This value depends on the IFC090-FF pipe
diameter.
CAL_POINT_LO R/W
Lowers calibrated value. This is the absolute value of the lowest positive and
negative value, the device is capable of measuring, and it is constant to ‘0’.
CAL_UNIT R/W
Engineering units code index for the calibration values. This is always m 3 /s
(cubic meter per second).
CAL_ZEROPOINT R/W
Start zero point calibration by writing a value different from ‘0’.
NOTE:
Handle this parameter with caution, since a correct zero point calibration is
based some important conditions.
COLLECTION_DIRECTORY R
Directory that specifies the number, starting index, and DD 2 item IDs of the
transducer block’s data collections. The first entry specifies the number of
data collections, and the remaining specifies the data collections.
CYCLES_ZEROPOINT_CAL R/W
Number of cycles to perform if a zero point calibration is started. Valid values
are in between 0 and 2000.
LIN_TYPE R/W
Linearization type used to describe the behavior of the sensor output. The
IFC090-FF has a linearization type of ‘linear with input’.
2 DD = Device Description