To configure a serial connection, first select the Serial connection type. The properties of the Connection Settings category adjust themselves for the selected connection type. They specify the settings for serial communication over RS232 interfaces, among them the COM port and the transfer bit rate at the port. Select the port from the Port setting drop-down list. The list displays all ports which are available at the computer the parent Controller is running at. Then select a transfer rate in bit per second from the Bits per second drop-down list, if it is offered.