The SIEMENS 6ED1 055-1FB00-0BA1 is a LOGO! DM8 230R expansion module designed to enhance the functionality of your Siemens LOGO! logic controllers. This compact and easy-to-install module provides additional digital inputs and outputs, allowing for greater flexibility and scalability in small automation projects. It is an ideal solution for expanding control systems in building management, industrial applications, and various machine control tasks without the need for a larger, more complex PLC. The module features four digital inputs and four relay outputs, operating on a 115/230V AC/DC power supply.