Twinsafe Sc; Twinsafe Sc - Operating Principle; Twinsafe Sc - Configuration - Beckhoff ELX3312 Operating Manual

Parameterization and programming
5.8

TwinSAFE SC

5.8.1

TwinSAFE SC - operating principle

The TwinSAFE SC (Single Channel) technology enables the use of standard signals for safety tasks in any
networks of fieldbuses. To do this, EtherCAT Terminals from the areas of analog input, angle/displacement
measurement or communication (4...20 mA, incremental encoder, IO-Link, etc.) are extended by the
TwinSAFE SC function. The typical signal characteristics and standard functionalities of the I/O components
are retained. TwinSAFE SC I/Os have a yellow strip at the front of the housing to distinguish them from
standard I/Os.
The TwinSAFE SC technology enables communication via a TwinSAFE protocol. These connections can be
distinguished from the usual safe communication via Safety over EtherCAT.
The data of the TwinSAFE SC components are transferred via a TwinSAFE protocol to the TwinSAFE logic,
where they can be used in the context of safety-relevant applications. Detailed examples for the correct
application of the TwinSAFE SC components and the respective normative classification, which were
confirmed/calculated by TÜV SÜD, can be found in the TwinSAFE application manual.
5.8.2

TwinSAFE SC - configuration

The TwinSAFE SC technology enables communication with standard EtherCAT terminals via the Safety over
EtherCAT protocol. These connections use another checksum, in order to be able to distinguish between
TwinSAFE SC and TwinSAFE. Eight fixed CRCs can be selected, or a free CRC can be entered by the user.
By default the TwinSAFE SC communication channel of the respective TwinSAFE SC component is not
enabled. In order to be able to use the data transfer, the corresponding TwinSAFE SC module must first be
added under the Slots tab. Only then is it possible to link to a corresponding alias device.
Fig. 51: Adding the TwinSAFE SC process data under the component, e.g. EL5021-0090
Additional process data with the ID TSC Inputs, TSC Outputs are generated (TSC -
TwinSAFE Single Channel).
Fig. 52: TwinSAFE SC component process data, example EL5021-0090
68 Version: 1.3.0 ELX3312 and ELX3314