The user must either connect a physical hardware dongle (typically a USB key) or configure a software activation file. If the license is not properly recognized, the software will launch in "Grace Mode" or fail to open entirely. Validating the license is the final "key" that unlocks the software for full industrial use. After licensing, it is prudent to launch RSLinx Classic separately to configure the drivers (such as the EtherNet/IP driver) to ensure the PC can communicate with the PLC hardware before opening the main Logix Designer application.
: 8 GB is the baseline, but 16 GB to 32 GB is highly recommended to avoid "stuttering" during project loads. how to install studio 5000 logix designer