FBs-PLC series
Specification:
Execution speed: 0.33uS/Sequential instruction.
Program capacity: 20K Words.
Program memory: FLASH ROM or SRAM + Lithium battery for Back-up.
Sequential instruction: 326 instructions (126 kinds) (Include derivative instructions).
Flow chart command (SFC): 4 instructions.
Communication Interface: Port 1 ~ Port 4 (RS232, RS485 , Ethernet, CANopen or GSM)
(Communication speed 4.8k ~ 921.6Kbps (9.6Kbps)*) Port1 ~ 4
provides FATEK or Modbus RTU/ASC II or user defined communication protocol
Maximum link stations: 254
Digital (Bit status) : X Input contact (DI) X0~X255 (256) Corresponding to external digital input.
Y Output relay (DO) Y0~Y255 (256) Corresponding to external digital output
TR Temporary relay TR0~TR39 (40)
For more Details Click here for catalog view page 8. 
For List of FBs-PLC Models click here for hardware manual view page H1-5 / page 12.