Endress+Hauser levelflex M FMP 40, Руководство по эксплуатации

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Levelflex M FMP 40 with Foundation Fieldbus 5 Operation
Hauser 49
Block administration parameters
Output values3
Scaling parameters
The relationship between the output values and scaling paramaters for the Levelflex M
is as follows:
The L_TYPE parameter influences the signal conversion:
Parameter Description
MODE_BLK See description in Resource block. The possible operating modes of the
transducer block are:
– AUTO: the block is operating as normal.
– MAN: the block is operated with a manually entered primary value.
– OOS: the block is out of service.
TAG_DESC User description of the intended application of the block.
BLOCK_ERROR Shows the error status associated with the block components
– Out-of-Service: the block is in OOS mode.
– Simulation active: shows the setting of DIP-switch SIM. Input failure/process
variable has BAD status.
– configuration error
Parameter Description
PV Either the primary/secondary transducer block value used to execute the block
or a process value associated with it. Comprises value and status.
OUT The primary value output as a result of executing the analog input block.
Comprises value and status.
FIELD_VALUE Raw value of field device in % of PV range with a status reflecting the transducer
condition before signal characterisation L_Type or filtering PV_TIME. Comprises
value and status.
Parameter Description
CHANNEL Selects the measured value to be input to the analogue input block
– 0 = no channel defined
– 1 = primary value: measured level/volume
– 2 = secondary value: measured distance
– 3 = third value: measured temperature
XD_SCALE Scales the transducer block value in the required engineering units (EU).
OUT_SCALE Scales the output value in the required engineering units (EU).
L_TYPE Sets the linearization type:
– DIRECT: the transducer block value bypasses the scaling functions
– INDIRECT:the transducer block value is fed through the linear scaling
functions
– INDIRECT SQRT: the transducer block value is fed through the square root
scaling functions
•
Direct:
•
Indirect:
•
Indirect square root:
FIELD_VAL 100
C HAN NEL _VALUE XD_SCALE_MIN –
XD_SCALE_MAX XD_SCALE_MIN
–
----------------------------------------------------------------------------------------------------------
×
=
PV CHANNEL_VALUE =
PV
FIELD_VALUE
100
----------------------------------------
OUT_SCALE_MAX OUT_SCALE_MIN –
( ) ×
OUT_SCALE_MIN + =
PV
FIELD_VALUE
100
---------------------------------------- OUT_SCALE_MAX OUT_SCALE_MIN –
( ) ×
OUT_SCALE_MIN + =