Siemens NAN 67 Series Wartungshandbuch Seite 169

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 318
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 168
12-13
Ladder Logic (LAD) for S7-300 and S7-400
C79000-G7076-C504-02
12.11 Establishing the Trigonometrical Functions of Angles as
Floating-Point Numbers
With the following instructions, you can establish the trigonometrical
functions of angles represented as 32-bit IEEE floating-point numbers.
Instruction Explanation
SIN Establish the sine of an angle given in the radian measure.
ASIN Establish the arc sine of a floating-point number. The result is an angle
that is given in the radian measure. The value lies within the following
range:
/ 2 v arc sine v + / 2, where = 3.14.
COS Establish the cosine of a floating-point number from an angle given in
the radian measure.
ACOS Establish the arc cosine of a floating-point number. The result is an
angle that is given in the radian measure. The value lies within the
following range:
0 v arc cosinev + , where = 3.14...
TAN Establish the tangent of a floating-point number from an angle given in
the radian measure.
ATAN Establish the arc tangent of a floating-point number. The result is an
angle that is given in the radian measure. The value lies within the
following range:
/ 2 v arc tangent v + / 2, where = 3.14...
You can find information on the effects that the instructions SIN, ASIN,
COS, ACOS, TAN and ATAN have on the status bits CC 1, CC 0, OV and
OS in Section 12.6.
Tables 12-12 to 12-17 show the boxes SIN, ASIN, COS, ACOS, TAN and
ATAN and describe the parameters.
Table 12-12 Box SIN and Parameters
LAD Box Parameter Data
Type
Memory
Area
Description
SIN
EN BOOL I, Q, M, D, L Enable input
SIN
EN ENO
ENO BOOL I, Q, M, D, L Enable output
EN
IN OUT
ENO
IN REAL I, Q, M, D, L Number
OUT REAL I, Q, M, D, L Sine of the
number
Description
Parameters
Floating-Point Math Instructions
Seitenansicht 168
1 2 ... 164 165 166 167 168 169 170 171 172 173 174 ... 317 318

Kommentare zu diesen Handbüchern

Keine Kommentare