WinCC OA V3.17, Server Basic. License for WinCC OA Server without external data connection (Tags) and without operator station licenses (UIs). With alarming, extended trend history recording, S7 and S7 Plus Driver (8 connections), SSL encryption, OPC Server (not available under Linux), OPC and OPC UA Client, Web server and one WinCC OA Operator (1 device). For proper operation the purchase of at least one Tag package and one UI package is required (optional).