Siemens simatic modular controllers s7 1200 series siemens 6es7211 1bd30 0xb0 the siemens 6es7211 1bd30 0xb0 is a din rail simatic s7 1200 controller that is ideal for open loop and closed loop control tasks in mechanical equipment manufacture and plant construction it combines maximum automation and minimum cost due to the compact modular design with a high performance at the same time the 6es7211 1bd30 0xb0 is suitable for a wide variety of automation applications its range of use ex