Standard Ethernet forbindelse med FTP eller NFS
Moderne CNC-maskiner er ofte udstyret med en standard Ethernet-forbindelse. Hastigheden, fleksibiliteten og Ethernet-forbindelsens indbyggede korrektion af transmissionsfejl gør, at den er det oplagte valg for mange virksomheder, specielt når det kombineres med dedikeret FTP- eller NFS-server-software.
CIMCO NFS and CIMCO FTP provides robust and secure NC program transmission over NFS or FTP. CIMCO NFS’ hastighed og pålidelighed er blevet bevist tusinder af gange på værksteder under navnet “Heidenhain NFS”.
Transfer NC Programs
Most implementations are configured so that all NC programs for a specific CNC Machine Tool are located in a certain folder on the PC. On the CNC control, when requesting a program from the PC, all the NC programs are listed and can be selected by the operator. An NC program is transferred from the PC to the CNC control in seconds rather than minutes.
Networking with NFS and CNC Machines
The CIMCO NFS Server enables CNC Machines to access the files in a shared folder – called an export – on a server, using a standard network. When a CNC Machine connects to the NFS Server, it must specify which export to use. If allowed in the user configurable setup, the CNC Machine then accesses the export and reads and/or writes (if allowed – also configurable) files in the exported folder.
The NFS Server can handle multiple exports, making it possible to export more than one folder on the same computer. It is even possible to export the same folder with different export names and access rights, creating a setup where some machines are restricted to ‘read access’ to the exported folder while other machines can have both ‘read’ and ‘write access’.
When running the NFS Server on an internet connected network, in order to keep internet intruders from gaining access to the exported files CIMCO NFS Server provides a user configurable Access Control List. Only machines whose IP addresses are specified in the Access Control List of an export are allowed access to that export. If no IP addresses are specified, all machines are allowed access. By simply checking a box, an export folder can be rendered ‘read-only’, making it impossible for the machines accessing that folder to modify or delete files.
Configuring the NFS Server
Configuring and starting the CIMCO NFS Server is facilitated with the help of the CIMCO NFS Configuration Wizard. On Windows computers, the server runs as a service, and the NFS Server can be set to start each time the computer does. Retaining compatibility through consecutive releases, CIMCO NFS Server even works with legacy Windows 95/98 OS where it runs in the background as a normal program.