Rockwell-automation FactoryTalk View Machine Edition Users Guide Manuale Utente Pagina 491

  • Scaricare
  • Aggiungi ai miei manuali
  • Stampa
  • Pagina
    / 677
  • Indice
  • SEGNALIBRI
  • Valutato. / 5. Basato su recensioni clienti
Vedere la pagina 490
23 Use expressions
23-13
• • • • •
Mathematical functions
Use math functions to calculate the square root, log (natural or base 10), or trigonometry
ratios (in radians or degrees) of a tag.
Security functions
Use security functions to control access to your application.
These functions allow you to determine a users identity or security rights in order to limit
access to the application based on these criteria.
This function Returns this value
SQRT (expression) The square root of the expression
LOG (expression) The natural log of the expression
LOG10 (expression) The base ten log of the expression
SIN (expression) The sine of the expression in radians
COS (expression) The cosine of the expression in radians
TAN (expression) The tangent of the expression in radians
ARCSIN (expression) The arc sine of the expression in radians
ARCCOS (expression) The arc cosine of the expression in radians
ARCTAN (expression The arc tangent of the expression in radians
SIND (expression) The sine of the expression in degrees
COSD (expression) The cosine of the expression in degrees
TAND (expression) The tangent of the expression in degrees
ARCSIND (expression) The arc sine of the expression in degrees
ARCCOSD (expression) The arc cosine of the expression in degrees
ARCTAND (expression) The arc tangent of the expression in degrees
This function Returns this value
CurrentUserName( ) A string containing the name of the current user.
This function is case sensitive. All RSView 3.20 and earlier user
names use uppercase letters.
Vedere la pagina 490
1 2 ... 486 487 488 489 490 491 492 493 494 495 496 ... 676 677

Commenti su questo manuale

Nessun commento