The Siemens 6ES7211-1HD30-0XB0 is a SIMATIC S7-1200 CPU 1211C with an onboard PROFINET interface, designed for compact automation tasks requiring integrated communication on the PROFINET bus.
Key ratings
Runs on 24 V DC, with a permissible range of 20.4 V to 28.8 V — wide enough to handle a sagging supply without dropping out. Integrated 1 Mbyte load memory and a typical backup time of 240 hours for the real-time clock and retentive data. Supports programming in FBD, LAD, and SCL. Approvals include cULus, CE, and FM, which covers the major North American and European certification requirements.