Operation; Block Administration Parameters Parameter Description - Endress+Hauser Fieldbus levelflex M FMP 40 Operating Instructions Manual

Levelflex M FMP 40 with Foundation Fieldbus
Endress+Hauser
Block administration parameters
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
– configuration error
Output values3
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.
Scaling parameters
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
– INDIRECT SQRT: the transducer block value is fed through the square root
The relationship between the output values and scaling paramaters for the Levelflex M
is as follows:
FIELD_VAL
= 100
The L_TYPE parameter influences the signal conversion:
• Direct:
PV CHANNEL_VALUE
=
• Indirect:
FIELD_VALUE
PV = --------------------------------------- -
100
• Indirect square root:
FIELD_VALUE
PV = --------------------------------------- -
100
variable has BAD status.
functions
scaling functions
CHANNEL_VALUE XD_SCALE_MIN –
×
--------------------------------------------------------------------------------------------------------- -
XD_SCALE_MAX XD_SCALE_MIN
–
× (
OUT_SCALE_MAX OUT_SCALE_MIN –
× (
OUT_SCALE_MAX OUT_SCALE_MIN –

5 Operation

)
+ OUT_SCALE_MIN
)
+ OUT_SCALE_MIN
49