Specification : Supply voltage type AC Input type PNP/NPN Number of digital inputs 12 Output type Relay Number of digital outputs 8 Program capacity 8 K steps Data memory capacity 4 K words Logic execution time 0.23 µs Communication port(s) Serial RS-232C, USB Number of Ethernet ports 0 Number of USB ports 1 Number of RS-232 ports 1 Number of RS-485 ports 0 Communication option(s) None Number of encoder input channels 6 Max. encoder input frequency 100 kHz Max. number of PTP axes 0 Max. pulse output frequency 0 kHz Function Block programming Battery-free memory backup Real-time clock Analogue option boards Max. number of analogue I/O channels 0 Max. number of local I/O points 20 Max. number of expansion units 0 Built-in auxiliary 24 VDC output 0 mA Operating temperature range -20-60 °C Product Height (unpacked) 90 mm Product Width (unpacked) 86 mm Product Depth (unpacked) 80 mm