Endress+Hauser Deltabar S FMD77, Operating Instructions Manual

Page: 79 / 114

Deltabar S FMD77, FMD78, PMD75 with FOUNDATION Fieldbus Commissioning
Hauser 79
7.9 Scaling the OUT parameter
In the Analog Input Block, the input value or input range can be scaled in accordance with
the automation requirements.
Example:
The measuring range 0 to 500 mbar (7.5 psi) should be rescaled to 0 to 100 %.
• Select XD_SCALE group.
– For EU_0, enter "0".
– For EU_100, enter "500".
– For UNITS_INDEX, enter "mbar".
• Select OUT_SCALE group.
– For EU_0, enter "0".
– For EU_100, enter "10000".
– For UNITS_INDEX, select "%" for example.
The unit selected here does not have any effect on the scaling. This unit is not displayed
on the onsite display or in the operating program such as FieldCare.
• Result:
At a pressure of 350 mbar (5.25 psi), the value 70 is output to a downstream block or to
the PCS as the OUT value.
P01-xMx7xxxx-05-xx-xx-en-008
CAUTION
!
Note Dependencies when setting parameters!
‣
If you have selected the "Direct" mode for the L_TYPE parameter, you cannot change the
values and units for XD_SCALE and OUT_SCALE.
‣
The L_TYPE, XD_SCALE and OUT_SCALE parameters can only be changed in the OOS
block mode.
‣
Make sure that the output scaling of the Pressure Transducer Block SCALE_OUT matches
the input scaling of the Analog Input Block XD_SCALE.
0 1 0.7
0.7
1
0
70 0 100
L_TYPE: Indirect
Analog Input Block
XD_SCALE
OUT_SCALE
0
EU_0
500
EU_100
EU_0 EU_100
UNITS_INDEX:
mbar
UNITS_
INDEX:
%
OUT Value = 70
PRIMARY_VALUE
= 350 mbar
Output Pressure
Transducer Block