The base release of V12 SP1 contains known bugs, communication errors, and stability issues. Installing the latest hotfixes resolves crash issues during hardware configuration and improves connection stability with S7-1200 PLCs. Installation Order
TIA Portal V12 is resource-intensive software. The full installation package can be 4-5 GB or larger, and users have complained about the large download sizes. At least 4 GB of RAM is recommended, with better performance on systems with more memory.