Siemens logo 6 7 and 8 sps plc expansion modules siemens 6ed1055 1fb10 0ba2 the siemens logo 8 dm16 230r expansion module extends the logo 8 programmable logic controllers with 8 x additional digital inputs and 8 x digital outputs each relay output is capable of carrying 3a continuous current with an inductive load or 5a with a resistive load siemens 6ed1055 1fb10 0ba2 logo 8 sps plc expansion module dm16 230r