Endress+Hauser RMA 422 Mise En Service page 54

Process transmitter
The power of this function is that before the combination
(operative) each of the two inputs can be weighted with a factor
and the combination result can be set with a further offset.
What is important is that all values are entered in engineering
units.
Additionally the calculated value can be linearised over a max.
20 points using a third linearisation table. For this the setting
MCURV
table must be set to the following settings.
First point
Last point
Enter of further points is done in
(see linearisation table).
The linearisation value can also be moved using the setting
MDIOF
Parameter
* Operator
Mathematics signal
combination of the analogue
inputs
* Curve
Select operating mode
* Decimal point factor 1
Decimal point selection of the
multiplier for input 1
* Factor 1
Multiplier value for input 1
* Decimal point factor 2
Decimal point selection of the
multiplier for input 2
* Factor 2
Multiplier value for input 2
52
TABLE
must be set to
Input value (X) with
decimal point from
MSCLO
MSCHI
.
Setting up selections
MAOP
OFF
None
ADD
Addition (+)
SUB
Subtraction (-)
MUL
Multiplication (x)
MCURV
LINAR
Calculation without
linearisation table
TABLE
Calculation using the
linearisation table
FADP1
Selection range:
0 to 4 decimal points
FA1
Value:
-19999 to 99999
FADP2
Selection range:
0 to 4 decimal points
FA2
Value:
-19999 to 99999
. The first and last points in the
Output value (Y) with
MADP
decimal point from
MDILO
MDIHI
TAB M NOM02
under
Default
settings
OFF
LINAR
9999,9
1,0
9999,9
1,0
MDIDP
NOM03
, etc.
MATH
Actual
setting