Configuration of an alias device
After finally adding an alias device (by clicking "Add"), a double click on the new item opens the corresponding editor (called SDS Editor). Initially, this editor shows the mapping information of the alias device and the safety parameters. The mapping information on the top of the editor allows the linking of the alias device to a physical device within the I/O-tree of TwinCAT 3. Due to the hardware independent safety project, this linking can be done at the end of the programming of the safety logic. The overview of the SDS Editor can be seen in the following Figure.
Further Information