Yes. Atlas Copco provides translated manuals on the Virtual Hub. Use the language filter in the top-right corner of the download page.
The ES6 uses a subscription license for high-end features (e.g., SPC analysis, Wi-Fi connectivity). The manual explains how to purchase an extension code from your local distributor. atlas copco es6 manual
According to the ES6 manual, the rear I/O must be connected in this order: atlas copco es6 manual
It can control both fixed-speed and Variable Speed Drive (VSD) compressors. For VSD units, it manages speed to maintain optimal pressure stability. Equal Wear Mode: atlas copco es6 manual