Siemens SITRANS P DS III - Page 115

Operator control functions via PROFIBUS
7.4 Settings
SITRANS P DS III with PROFIBUS PA
Operating Instructions, 06/2013, A5E00053276-07
115
Example 1
You want to assign the input range 1 to 4 Pa to the output range 0 to 100%.
1. Set measurement type "Pressure".
2. Set the following parameters:
>
Pressure transducer block
Unit for measured va
lue
(primary variable):
Pa
>
Analog input function block
Input starting value:
1.0
Input final value:
4.0
Output starting value:
0.0
Output final value:
100.0
Unit (output):
%
Note
The display can only show a part of the ASCII character set
in both upper and lower case. If
you enter lower
-case letters f, g, j, p, q, t, x, y, z in SIMATIC PDM in the parameter "Unit text
(output)", they will only be shown in upper case. The German letters ä, ö, ü, and ß, as well
as any ASCII characters with co
des higher than 125, are displayed with a block symbol with
all segments on. Thus try to avoid language
-specific characters.
Example 2
You want to convert the input range 0 to 400 m
3
to 200 l barrels. The output range, for
instance, is 0 to 2000 barrels.
1. Set measurement type "Volume".
2. Set the following parameters:
>
Pressure transducer block
Unit for measured value
(primary variable):
m
3
>
Analog input function block
Input for start
-of-scale
value:
0.0
Input for final value:
400.0
Output for st
art-of-scale
value:
0.0
Output for final value:
2000.0
Unit (output):
Text
Unit text (output):
Barrels