High-end Programmable Logic Controller (PLC) CPU unit with built-in I/Os - Mitsubishi Electric (MELSEC-F (FX) Series FX3U) - 16I/O [8DI (8 x digital inputs (24Vdc; Sink/Source)) + 8DO (8 x digital outputs (Rly NO contacts; 2A / 240Vac or 30Vdc; 10ms response))] - 64Ksteps (RAM; Program) memory capacity - connection capacity 256 x I/O points - with screw-clamp term. connections (I.O's) - with RS-422 communication capability - Supply voltage 24Vdc - DIN rail mounting (130mm width) - equivalent to FX3U16MRDS