PLC with 14 points 24VDC digital input (8@50KHz 6@5KHz) 10 points Transistor PNP output (4@50KHz)/ built-in two communication ports NO expandable (1 RS-232 and 1 RS-485)/ right side is expandable up to 80 I/O points. Power Supply 100~240VAC. Standard Size 14 points 24VDC digital input (8 points 50KHz, 6 points total 5KHz), 10 points relay output or transistor output (4 points 50KHz), built-in 1-2 communication ports, left side is expandable 0-2 modules, right side is expandable up to 80 I/O points.