Parameterizing The Profisafe Communication (Nck) - Siemens SINUMERIK 840D sl Function Manual

Connecting sensors and actuators
8.2 Connecting I/O via PROFIsafe
See Chapter "Parameterizing the PROFIsafe communication (NCK) (Page 194)"
● SPL-SGE/SGA interface
– PROFIsafe address of the PROFIsafe component
– F-net data filter
– SGE/SGA assignment
SPL-SGE interface: see "parameterizing the SPL-SGE interface (Page 196)"
SPL-SGA interface: see "Parameterizing the SPL-SGA interface (Page 201)"
8.2.5

Parameterizing the PROFIsafe communication (NCK)

F-master address
In order to define a unique and clear communication relationship between F-slave and F-
master, in addition to the target address (PROFIsafe address of the F-slave), the source
address (PROFIsafe address of the F-master) must be defined.
The PROFIsafe address of the F-master is entered into the following machine data:
● MD10385 $MN_PROFISAFE_MASTER_ADDRESS[ ]
(PROFIsafe address of the F-master)
Input format: 0s 00 aaaa
s: Bus segment information
Value range: 5 = PLC-side I/O connections
aaaa: Hexadecimal PROFIsafe address
F-parameters F_source_address (range of values: 1...64125)
In order to be able to handle different PROFIsafe master addresses at different bus
connections (e.g. PROFIBUS, PROFINET), this MD is created as MD field so that it is possible
to parameterize several PROFIsafe master addresses.
If the same PROFIsafe master address is configured for various I/O connections, then only
this one PROFIsafe master address must be saved in the MD.
Note
The PROFIsafe address of the F-master is provided under:
● HW Config > Properties dialog box of the F-module > F-parameters:
F_source_address
PROFIsafe clock cycle
The PROFIsafe clock cycle defines the time grid in which new F-telegrams are generated by
the F-master for transfer to the F-modules. By default, the PROFIsafe cycle time is derived
from the interpolation cycle with the ratio 1:1.
As part of the PROFIsafe communications, a cyclic interrupt of the PLC user program (OB1)
is made. This is realized in the PROFIsafe clock cycle via OB40.
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Function Manual, 12/2017, 6FC5397-4BP40-6BA1
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