AH Motion Controller – Operation Manual (4) Set the parameters in the Driver Properties window, and then click OK . _4 Type a driver name in the Driver Name box. Select RS232/422/485 in the Type drop-down list box in the Connection Setup section. Select a communication port in the COM Port drop-down list box. If the first two steps are complete, the PLC which is connected and its communication port will be displayed in the COM Port drop-down list box. You can select the number of times the sending of a command is retried if a connection error occurs in the Time of Auto-retry box, and select an interval of retrying the sending of a command in the Time Interval of Auto-retry box. 4-36