I recommend using the TIA Selection Tool (Online)

It will help you locate all the required components for your Remote I/O system.

I want to answer you question directly, but it would require lots of questions.  It is far better to show you how to teach yourself to fish than ask you where you want you fish, what tackle you intend to use, what weight and type line, what bait you intend to use, and what type of fish you are after.

AutoGen_4839806

As topic, a dumb question: For ET 200SP I/O module, does base unit come with I/O module itself or I need to order them separately?
Since I remember the base unit comes with I/O module for S7-1500 I/O.

Thanks!