Pilz PSSu E S 4AI U - Manual (Page 22)

4.2 Configuration
4 Function description
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-6
Analogue value and typical digital value with a voltage range of
0 ... +10 V plus default values:
4.2.1.4 User scaling
User scaling 4- ][Funktionsbeschreibung_BA_Konfig Skalier Anwend Ein
User scaling is a second level of scaling. You can use this scaling to cor-
rect local influences. The function is the same as that of manufacturer
scaling, but a different value is used for amplification factor 1:
 y = (a
2
/ 256
D
* x) + b
2
or
 y = (a
2
/ 100
H
* x) + b
2
a
2
= Amplification factor * 256
D
User scaling is deactivated in the default setting. The default value for
offset is 0. The default value for gain is 256
D
(100
H
). That corresponds
to amplification factor 1.
Key:
 y: Digital value after user scaling
 x: Digital value before user scaling
 a
2
: Gain
 b
2
: Offset
 a
2
/ 1024
D
: Amplification factor
Analogue value of voltage Hexadecimal digital value Decimal digital value
0 V 0 0
5 V 4000 16 384
10 V 7FFF 32 767
5 V 6 V 7 V 8 V 9 V 4 V 3 V 2 V 1 V 0 V 10 V
32 767 29 490 26 214 22 937 19 660 16 384 13 107 9 830 6 553 3 277 0