Universal Programmable Logic Controller (PLC) CPU / main unit – Mitsubishi Electric (MELSEC-Q Series (QnU)) – 30Ksteps / 120KBytes (Program) memory capacity – connection capacity 4096 x I/O points – with USB connector + RJ45 port (10/100Mbit Ethernet) – with Ethernet communication capability – Supply voltage 5Vdc (from dedicated Q-series P.S.U.) – Backplane / rack mounting