CPU with Loop Control functions, 10K steps program, 64K words data memory, 2 expansion racks max.

CPU with Loop Control functions, 20K steps program, 64K words data memory, 2 expansion racks max.

CPU with Loop Control functions, 30K steps program, 128K words data memory, 3 expansion racks max, GTC(Gradient Temperature Control)

CPU, 5K steps program, 32K words data memory, 160 I/O max, serial PLC link

CPU, 10K steps program, 32K words data memory, 320 I/O max, serial PLC link, Ethernet port (100Base-TX)

CPU, 20K steps program, 32K words data memory, 640 I/O max (with 1 expansion rack), serial PLC link