Configuring a standby server

In the project properties in the Editor open the section Network.
In the property Standby, enter the name of the PC that has the connection to the hardware and is supposed to work as the redundant server.

You either can select the server from the list opened with the button or type it in by hand.

The control system supports two different kinds of redundancy:

Software redundancy	The PLC is not redundant. Only the control system is redundant.
Hardware redundancy	Both the PLC and the control system are redundant.