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.

Additional process data with the ID TSC Inputs, TSC Outputs are generated (TSC - TwinSAFE Single Channel).

A TwinSAFE SC connection is added by adding an alias devices in the safety project and selecting TSC (TwinSAFE Single Channel)

After opening the alias device by double-clicking, select the Link button next to Physical Device, in order to create the link to a TwinSAFE SC terminal. Only suitable TwinSAFE SC terminals are offered in the selection dialog.

The CRC to be used can be selected or a free CRC can be entered under the Connection tab of the alias device.

These settings must match the settings in the CoE objects of the TwinSAFE SC component.
The TwinSAFE SC component initially makes all available process data available. The Safety Parameters tab typically contains no parameters. The process data size and the process data themselves can be selected under the Process Image tab.

The process data (defined in the ESI file) can be adjusted to user requirements by selecting the Edit button in the dialog Configure I/O element(s).

The safety address together with the CRC must be entered on the TwinSAFE SC slave side. This is done via the CoE objects under TSC settings of the corresponding TwinSAFE SC component (here, for example, EL5021-0090, 0x8010: 01 and 0x8010: 02). The address set here must also be set in the alias device as FSoE address under the Linking tab.

Under the object 0x80n0:02 Connection Mode the CRC to be used is selected or a free CRC is entered. A total of 8 CRCs are available. A free CRC must start with 0x00ff in the high word.

Object TSC Settings Depending on the terminal, the index designation of the configuration object TSC Settings can vary. Example: - EL3214-0090 and EL3314-0090, TSC Settings, Index 8040 - EL5021-0090, TSC Settings, Index 8010 - EL6224-0090, TSC Settings, Index 800F

TwinSAFE SC connections If several TwinSAFE SC connections are used within a configuration, a different CRC must be selected for each TwinSAFE SC connection.