
29. DATA INPUT/OUTPUT
B–64112EN/01
NC FUNCTION
272
To perform DNC operation, load a machining program created on a PC
onto a memory card and then inserting the memory card into the PCMCIA
port on the front of the monitor.
During DNC operation, secure the memory card with the fixing bracket.
Memory card
PC
CNC
Fixing bracket
Creation of a machining program DNC operation
The FANUC DNC2 is a communication protocol enabling data
transmission between the FANUC CNC unit and a personal computer by
connecting them via the RS–232C interface.
The FANUC DNC2 has the following features:
(1)This protocol is based on the communication protocol LSV2 used by
some CNC manufacturers in Europe, so that software can easily be
established even with a personal computer.
The RS–232C interface is used to connect a personal computer with
the FANUC CNC. The RS–422 interface can also be used to improve
the transmission rate.
(2)This protocol is used for one–to–one (point–to–point) communication
between one FANUC CNC unit and one personal computer.
The protocol cannot provide multi–point communication between one
personal computer and more than one CNC unit.
Personal
Computer
CNC
Command / Response
Response / Command
29.5
DNC OPERATION
WITH MEMORY
CARD
29.6
DNC2 CONTROL