
B-63782EN/01 NC FUNCTIONS 28.DATA INPUT/OUTPUT
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28.3 DATA SERVER
The File Transfer Protocol (FTP) is widely used to log in to a
computer connected to a network such as Ethernet and transfer files
over the network.
The data server function uses FTP to connect the CNC to the host
computer and transfer of NC programs between the CNC and the host
computer. Therefore, it is possible to transfer NC programs between
many types of host computers and the CNC without having to create
any special application.
The data server function connects the CNC and host computer over an
Ethernet network to enable the following:
(1) Transfer of NC programs between a hard disk incorporated on an
Ethernet board (simply called the hard disk) to CNC part
program storage. (Read/punch operation)
(2) Call of an NC program from the hard disk as the main program
and execute it for machining. (DNC operation)
(3) Call of an NC program from CNC part program storage as the
main program and an NC program from the hard disk as a
subprogram, and execute them for machining. (M198-based
DNC operation)
(4) Transfer of NC programs between the hard disk and the host
computer over an Ethernet (FTP). (GET, PUT, MGET, and
MPUT operations)
(5) Deletion of NC programs from the hard disk and display of a list
of NC programs on the hard disk.
(6) Deletion of NC programs from the host computer and display a
list of NC programs in the host computer.
(7) Creation of subdirectories on the hard disk, as well as re-
organization and removal of those subdirectories.
(8) Transfer of NC programs from the host computer to CNC part
program storage and their execution for DNC operation without
passing them via the hard disk. (FTP mode)
(9) Cause the CNC data server to run also as an FTP server. This
makes it possible for the host computer to input and output NC
programs to and from the hard disk.