Rockwell-automation DeviceLogix System User Manual Manual de usuario Pagina 70

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 209
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 69
70 Publication RA-UM003B-EN-P - February 2010
Chapter 3 Bind Function Blocks with I/O
A green circle indicates that the connection is valid.
A red circle indicates that the connection is invalid.
Determine the status of a
connection
Once a connection is made, you can use the Negate and Assume Data
Available options to determine the state of that connection.
Negate Data
The Negate function causes the status of the data to be negated before
it enters the function block. The negate operation cannot be used for
analog types.
TIP
Using the Negate option does not require the use of one of the
available function blocks (as would a Not function block) .
Vista de pagina 69
1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 208 209

Comentarios a estos manuales

Sin comentarios