Siemens 6SE7028-0ES87-2DA1The Siemens 6SE7028 0ES87 2DA1 is a compact programmable logic controller (PLC) from the SIMATIC S7 200 series, specifically engineered for small scale industrial automation applications. It features a powerful S7 200 CPU operating at 16 MHz with 16 KB of RAM, enabling efficient processing of diverse tasks. This controller supports up to 16 I O modules, customizable to fit specific operational needs, and is compatible with a variety of communication