The 6ED1055-1MD00-0BA1 is a programmable logic controller (PLC) from Siemens, part of the LOGO! series. It is designed for controlling small-scale automation projects, such as for lighting, HVAC, and security systems. The LOGO! PLC provides users with up to 8 digital inputs, 8 digital outputs, and 1 analog input and output channel. It also features a time-controlled sequence control and a range of application functions such as emergency stop, safety contacts, and a logic linking function. The PLC can be programmed using the intuitive and user-friendly LOGO!Soft software. It also features multiple protection features, including dual voltage protection and electromagnetic interference (EMI) protection.