10.7 Configuring Safety Integrated (SPL)
10.7.1 Introduction
With the aid of safe programmable logic (SPL), safety-related sensors and actuators can be
directly connected to the control's I/O and evaluated by means of software without external
evaluation units.
In order to check that the NCK SPL and PLC SPL are functioning, the system program
organizes a cyclic data cross-check between the PLC and the NCK.
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Figure 10-10 SPL - data cross-check
The Safety Integrated (SPL) mode is supported by all NCU versions available in the TIA Portal.
The Safety Integrated (SPL) mode has the following characteristics:
● SINAMICS Integrated or connected NX use the SINUMERIK "SI Motion Monitoring"
telegrams, not the PROFIsafe telegrams.
● The user program is programmed like a standard user program in the editors for STL, FBD
or LAD. Each safety-related program must be created in two programming languages in
order to allow the data cross-check (PLC SPL and NCK SPL).
● During the programming, the SGE/SGA of the data block SPL [DB18] is used that you
assign on the NCU (e.g. via SINUMERIK Operate) to the I/O addresses of the field devices.
See: Function Manual, SINUMERIK Safety Integrated
10.7.2 Configuring the F-peripherals
During the configuring of F-peripherals with Safety Integrated (SPL), you can orient yourself on
the following handling overview with sample configuring sequence. This serves, however, only
as an introduction to the configuring and programming of SINUMERIK Safety Integrated (SPL).
Therefore, observe the following documentation prior to configuring Safety Integrated (SPL):
● Function Manual, SINUMERIK Safety Integrated
Safety configuration
10.7 Configuring Safety Integrated (SPL)
SINUMERIK STEP 7 Toolbox V15.1
Configuration Manual, 12/2018, A5E46279635B AA 187
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