
30. PERSONAL COMPUTER FUNCTION
B–63172EN/01
NC FUNCTION
174
The high–speed serial bus is a serial interface used to transfer data at high
speed between the CNC control unit and a personal computer installed on
the operator panel side.
By installing a dedicated interface board in a commercially available IBM
PC–compatible personal computer, the CNC control unit can be
connected to the personal computer via the high–speed serial bus. The
high–speed serial bus has the following features:
D Large amounts of data can be transferred between the personal
computer and CNC control unit at high speed.
D A highly reliable optical fiber cable is used for connection.
D The machine tool builder can select an appropriate personal computer
according to the specifications of the machine system.
HSSB interface board HSSB interface board
Personal computer
High–speed
serial bus
Hardware for open CNC (system with commercially available personal
computer connected to CNC via high–speed serial bus)
Item
Specification Remarks
Interface board on CNC For option slot
Interface board on
personal computer
ISA specification
Power supply: +5 V
only
Connection cable Optical fiber cable Maximum length: 50 m
Personal computer
requirements
CPU: 486 or better
At least one ISA slot
The installation environment
shall satisfy the conditions
described in the manual
supplied with the personal
computer.
30.1
HIGH–SPEED SERIAL
BUS (HSSB)