Modular Profisafe I/O Interface; Profisafe Input Modules - Siemens SINUMERIK 840D sl Function Manual

PROFIsafe drivers of type F-DI or F-DI/DO F-modules that have stopped output failsafe values
(0) as F-net data in the direction of SPL.
Behavior regarding PROFIsafe slave:
Stopped PROFIsafe drivers no longer generate F-telegrams. At the latest after the configured
timeout time, the F-modules (PROFIsafe slaves) identify the failure of the PROFIsafe
communication and go into the safe state corresponding to the specifications of the PROFIsafe
profile.
8.3

Modular PROFIsafe I/O interface

Using this function, it is easier for machinery manufacturers to connect PROFIsafe input and
output modules for machine series with a modular design.
Example
The S7 configuration required for PROFIsafe communication, the appropriate NCK machine
data parameterization as well as the SPL programs for NCK and PLC are in the control for the
maximum expansion stage. Depending on the functionality available in a real machine, then
either the maximum number of PROFIsafe modules are connected - or just a subset of the
possible PROFIsafe modules
The PROFIsafe connection and the SPL connection for the particular PROFIsafe module are
then activated while the machine is being commissioned by activating the associated machine
data set or slots. Activation is realized by setting one of the activation bits assigned to the
particular machine data set.
Activation
The "modular PROFIsafe I/O interface" function is activated using machine data 10095
$MN_SAFE_MODE_MASK, bit 1 = 1.
The Step7 hardware configuration in the PLC must be available in the full scope.
8.3.1

PROFIsafe input modules

Activating a machine data set or slot
The activation of a machine data set for the PROFIsafe communication and SPL coupling of
an PROFIsafe input module is realized via:
MD13302 $MN_PROFISAFE_IN_ENABLE_MASK[m]. Bit x = 1
The machine data set of a slot includes the machine data:
● $MN_PROFISAFE_IN_ADDRESS[n]
● $MN_PROFISAFE_IN_FILTER[n]
● $MN_PROFISAFE_IN_ASSIGN[n]
● $MN_PROFISAFE_IN_SUBS_ENAB_MASK[n] (see substitute values)
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Connecting sensors and actuators
8.3 Modular PROFIsafe I/O interface
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