Rockwell-automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM Manual de usuario Pagina 329

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 420
  • Tabla de contenidos
  • SOLUCIÓN DE PROBLEMAS
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 328
Publication AG-UM008C-EN-P - February 2005
Using Dial-up Telephone Communication 10-9
Report-by-Exception and/or
Master Station-Initiated
Communication
Report-by-exception communication refers to the remote stations
initiating a dial-up connection to the master station upon change of
input status or process data in order to update the master station’s
data table.
Master station-initiated communication refers to the master station
initiating the dial-up connections to each of the remote stations on a
round robin or time-scheduled basis in order to update the master
station’s data table.
A combination of report-by-exception and master station-initiated
communication is possible but requires two communication ports and
modems (one for dial-in and one for dial-out) at the master station in
order to be effective. This can be accomplished using a 1785-KE
module with a PLC-5 processor, a 1747-KE module with an SLC 5/03,
or a dual-port processor such as a MicroLogix 1500 LRP or a
CompactLogix L31.
Vista de pagina 328
1 2 ... 324 325 326 327 328 329 330 331 332 333 334 ... 419 420

Comentarios a estos manuales

Sin comentarios