Endress+Hauser Cerabar M - Page 212

Commissioning with the FF configuration program Cerabar M, Deltabar M, Deltapilot M
212 Endress+Hauser
Linearization Type/
L_TYPE
Options
Index: 16
Data type: unsigned8
Access: OOS
Select the linearization mode for the input value.
Options:
• Direct: In this setting, the input value bypasses the linearization function and is
looped unchanged with the same unit through the Analog Input function block.
With this option, the scaling and unit for the Transducer Scale/XD_SCALE and
Output Scale/OUT_SCALE parameters must be identical. If this is not the case, the
block goes to the OOS mode and the "Block config error" message is displayed in the
Block Error/BLOCK_ERR parameter.
• Indirect: The input value is rescaled linearly via the Transducer Scale/XD_SCALE
input scaling to the desired Output Scale/OUT_SCALE output range.
• Indirect square root: The input value is rescaled via the Transducer Scale/XD_SCALE
parameter and recalculated using a root function. It is then rescaled again to the
desired output range via the Output Scale/OUT_SCALE parameter.
Factory setting:
Direct
Low Cutoff/LOW_CUT
Entry
Index: 17
Data type: float
Access: auto, man, OOS
Enter the limit value for the low flow cut off. If the converted measured value is below
this limit value, the Process Value/PV parameter displays "0".
This parameter is only active if the "Low cutoff" option was activated via the I/O
Options/ IO_OPTS parameter.
Input range:
Range and unit of Output Scale/OUT_SCALE ( ä 211).
Factory setting:
0
Process value filter
time/PV_FTIME
Entry
Index: 18
Data type: float
Access: auto, man, OOS
Enter the filter time constant for the 1st order digital filter. This time is required in
order for 63% of a change in the controlled variable IN to have an effect on the value
of Process Value/PV.
A0030421
Factory setting:
0 s
Field Value/
FIELD_VALUE
Display
Index: 19
Data type:
Access: read only
The Field Value/FIELD_VALUE parameter is a structured parameter consisting of two
elements.
VALUE
• Displays the process variables after input scaling of the Analog Input Block. The
value relates to a percentage of the Transducer Scale/XD_SCALE input range and is
replaced by the simulation value when simulation is active.
STATUS
• Displays the current status.
Analog Input Block
Parameter Description
[s]
t
PV
IN
PV_FTIME
63 %