Siemens EF 83H Series Manual de usuario Pagina 64

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 187
  • Tabla de contenidos
  • SOLUCIÓN DE PROBLEMAS
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 63
Communication Services
4-13
SIMATIC 505 PROFIBUS-FMS CP User Manual
4.6 S7 Services
S7
services allow S7 devices to read and write data in the 505 CPU memory
.
The FMS CP module also responds to Status requests from an S7 station.
S7 services supported by the FMS CP module are shown in Figure 4-8.
Refer to Section A.2 for details of S7-to-505 memory addressing.
Read
or Status request
Read/Status response
Data
Flow
505
FMS CP
FMS CP
CPU
Server
Data from memory
S7 Station
Client
Data to memory
Read
or Status Request
The client S7 station issues
a Read or Status request for
data stored at a specified
address in the server 505
FMS CP. The server sends
the requested data.
READ/STATUS
Write
(data)
Data
Flow
505
FMS CP
FMS CP
CPU
Server
Data to memory
S7 Station
Client
Data from memory
Write
Request
Data stored in the client
S7 station is written to a
specified address in the
server FMS CP station.
The server returns an
acknowledgement.
WRITE
Acknowledge
Job
Job
Figure 4-8 S7
Services Supported as a Server
NOTE:
The 505 FMS CP module requires no configuration of connections or
variables to support S7 read, write, or status request services.
S7 Services
Supported
Vista de pagina 63
1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 186 187

Comentarios a estos manuales

Sin comentarios