Siemens Sinumerik 840D sl Function Manual page 240

Sinumerik safety integrated

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Table of Contents

Connecting Sensors/Actuators

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

The diagram 7-21 is an example; for I Device, the PN/PN coupler can be

SIMATIC--F--CPUs that support the F_SENDDP/F_RCVDP blocks are suitable as

communication partner, e.g. IM151F.

The chapter only describes the SINUMERIK--specific safety--relevant CPU--CPU

communication to couple plants and systems corresponding to the SIMATIC

F_SENDDP/F_RCVDP protocol specifications. SINUMERIK does not support

SIMATIC S7 communication with F_SENDS7/F_RCVS7.

When configuring F--DP communication between two F--CPUs, an input and output

area must be defined via SIMATIC Step 7 via which the F telegrams are exchan-

ged. The start address (logical basis address) can be freely selected. However,

within an F--CPU it must be the same for the input and output areas. However, a

different start address can be used in the two F--CPUs.

An F--DP communication always comprises a sender (F_SENDDP) and a receiver

(F_RECVDP). Only the sender (in Fig. 7-22 F_SENDDP of the F--CPU1) transfers

F net data -- in the F net data telegram -- to the receiver (in Fig. 7-22 F_RECVDP

of F--CPU2). The receiver only acknowledges the receipt of the F net data tele-

gram using an F acknowledgment telegram. The F acknowledgment telegram does

not contain any F net data.

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

Sinamics s120