S7 1200 Tool 64 Bit 40

If you are moving from older versions to the V4.x ecosystem, here is what you can expect: OPC UA Support: V4.4 and later allow the S7-1200 to act as an OPC UA Server

If you need to manipulate data related to (be it a DB, an offset, or a parameter ID), here are the tools you should install today: S7 1200 Tool 64 Bit 40