ftdi USB to RS232 use on Ubuntu Server needing to make ttyUSB0 be used all the time

I have a FTDI usb port to RS232 connection. I need ttyUSB0 to remain available, active and the same every time the Ubuntu server boots as it is a dedicated system to record data. I am not a skilled Linux user. Does Udev change ttyUSB0 in any way or once the device is plugged in (remains plugged it) and is active? Will I be able to be assured that data collection and transmission to the raspberry pi will continue to work after every reboot? I need to be assured of this before I travel 300 miles to do an installation. Thank you for your help.