Safety--Related Cpu--Cpu Communication (F_Dp Communication) - Siemens Sinumerik 840D sl Function Manual

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Safety- -related CPU- -CPU communication

(F_DP communication)

For safety--relevant CPU--CPU communication to the plant/system coupling, a

fixed number of fail--safe data is transferred between the safety programs in the

F--CPUs. Data transfer is realized using the F_SENDDP blocks to send and

F_RECVDP blocks to receive.

The options as to how a SINUMERIK 840D sl with F_DP communication can be

integrated is shown in Fig. 7-21.

The F_DP communication is possible via PROFIBUS--DP (interface X126 or X136

of the NCU), as well as via PROFINET (PROFINET interfaces of the NCU7x0PN

of the PLC317F PN/DP) in the configurations PROFIBUS--DP master,

PROFIBUS--DP slave, PROFIBUS--DP slave -- peer--to--peer data transfer and

PROFINET IO controller (via PN/PN coupler).

PROFIBUS- -DP

PROFINET- -capable CPU, e.g.:

SINUMERIK 840D sl

- - S7- -300F CPU

PROFIBUS- -capable CPU e.g.:

- - SINUMERIK 840D sl

- - S7- -300F CPU

Figure 7-21 F_DP communication options with SINUMERIK 840D sl

With SINUMERIK 840D sl, a maximum of sixteen safety--relevant send connec-

tions and sixteen safety--relevant receive connections can be configured for each

NCU (option "SI Connect").

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition

7.4 Safety- -related CPU- -CPU communication (F_DP communication)

F_DP communication

Connecting Sensors/Actuators

PROFIBUS- -DP

Sinamics s120