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

A slot is considered to have been parameterized as soon as one of the following data of the
machine data set is not equal to the particular default value:
● MD $MN_PROFISAFE_IN/OUT_ADDRESS
● MD $MN_PROFISAFE_IN/OUT_FILTER
● MD $MN_PROFISAFE_IN/OUT_ASSIGN
PROFIsafe input/output modules
For PROFIsafe input/output modules, the input and output direction are parameterized via
dedicated slots. These can be parameterized independently of one another for each of the
possible slot modes (active, passive or inactive).
8.4

Safety-related CPU-CPU communication (F_DP communication)

For safety-related CPU-CPU communication to the plant/system coupling, a fixed number of
failsafe 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 the following diagram.
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).
Figure 8-21
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
8.4 Safety-related CPU-CPU communication (F_DP communication)
F_DP communication options with SINUMERIK 840D sl
Connecting sensors and actuators
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