19. FUNCTIONS FOR HIGH SPEED
CUTTING B–63682EN/01
NC FUNCTION
136
When the remote buffer is connected to the host computer or input/output
device via serial interface, a great amount of data can be sent to CNC
consecutively at a high speed.
CNC
RS–232–C / RS–422
Remote
buffer
Host
computer
Input/output
device
The remote buffer enables the following operations:
D When connected to the host computer online, it performs DNC
operation with high reliability and at a high speed.
D The NC program and parameters can be down–loaded from the host
computer.
D When connected to an input/output device, it enables DNC operation,
and various data can be down–loaded. The following input/output
devices can be connected.
- FANUC PPR
- FANUC FA Card
- FANUC FLOPPY CASSETTE
- FANUC PROGRAM FILE Mate
- FANUC Handy File
Hereafter, the device to which the remote buffer is connected is called
the host computer.
- Electrical interface
The following two types of interface are prepared as standard
specifications.
S RS–232–C Interface
S RS–422 Interface
RS–233–C RS–422
Interface
Serial voltage interface (start–
stop)
Balanced transmission serial in-
terface (start–stop)
Baud rate 50 to 19,200 baud 50 to 86,400 baud(*1)
Cable
length
4800 baud or less
9600 baud
Varies according to I/O device.
Approx. 800 m (9600 baud or
less)
19,200 baud or more
19.4
REMOTE BUFFER
19.4.1
Remote Buffer (only at
1–path Control)
Explanations
D Interface between the
remote buffer and host
computer