6Es7521-1Bh00-0Ab0 Wiring Diagram. Properties, wiring diagrams, characteristics and technical specifications. Input type 3 (iec 61131); 6ES75211BH000AB0. 6ES75211BH000AB0. SIMATIC S71500, МОДУЛЬ from simatic-market.ru Warranty terms and conditions if you need. Farnell offers fast quotes, same day dispatch, fast delivery, wide inventory, datasheets &. Of which 2 inputs as counters can be used;