Logical I/Os :

Overview of Logical I/Os You cannot add any more hardware modules under the EtherCAT Safety Module. However, you can add safe modules and standard modules to the device tree below a coupler (e.g. EK11

brackets (example: EL

Logical I/O for Data Exchange with the Standard Controller The exchange of data between the EtherCAT Safety Module and the standard controller (main controller) is done via variables which are defined

CAT Safety Modules EL6900 and EL6910 are added [...] CAT Safety Module (e.g. EL

selected library, TcEL

of the EL1904 module [...] editor of the EL [...] of the module. EL1904 logical

Using SafetyApp Structure of the project tree of the safety application The objects relevant for the EtherCAT Safety Module and its programming are located under the Safety Module. Directly below them

: EL1904). Testing

Using Logical I/Os Programmatically Every mapping variable (channel variable) declared in the I/O Mapping of a logical I/O is available to the developer as a global variable when programming the safet