Siemens SIMATIC NET CP 343-1 Manual de usuario descargar pdf (Pagina 11)

Properties / services

1.3 Communication services

CP 343-1

Manual, 10/2012, C79000−G8976−C201-07

– Shared device

Individual submodules of the CP as IO device can be assigned up to two PROFINET

IO controllers in STEP 7 V5.5.

Note the information on configuring PROFINET IO systems with shared IO devices in

the "PROFINET System Description", see references, /13/ (Page 71).

● S7 communi

cation and PG/OP communication with the following functions:

– PG functions (including routing)

– Operator control and monitoring functions (HMI)

Multiplexing TD/OP connections

– Client and server for data exchange via communication blocks on S7 connections

configured at both ends.

Note

Blocks for S7 communication (see also STEP 7 online help or the "System Software

for S7-300/400 System and Standard Functions" manual):

 BSEND FB 12

 BRCV FB 13

 PUT FB 14

 GET FB 15

 USEND FB 8

 URCV FB 9

 C_CNTRL FC 62

– Server for data exchange on S7 connections configured at one end only without

communication blocks on the S7300 / C7300 station

● Open communication services with the following functions:

– SEND/RECEIVE interface over ISO transport connections, ISOonTCP, TCP and UDP

connections

UDP frame buffering on the CP can be disabled during configuration. When

necessary, this allows you to achieve a shorter reaction time between the arrival of a

UDP frame and its evaluation on the CPU.

– Multicast over UDP connection

The multicast mode is made possible by selecting a suitable IP address when

configuring connections.

– FETCH/WRITE services (server; corresponding to S5 protocol) via ISO transport

connections, ISOonTCP connections and TCP connections;

The addressing mode can be configured for FETCH/WRITE access as S7 or S5

addressing mode.

– LOCK/UNLOCK with FETCH/WRITE services;

– Connection diagnostics from the user program

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