User manual

The LANCNC acts as an FTP server for file storage that an operator can access at the

control panel on a CNC. Connection to the FTP server can be done with standard

software tools that are provided with most PC’s and special software is not required. The

most popular of these are Explorer and Internet Explorer from Microsoft. Anyone on the

network can drag and drop files to the CNC server where they can be transferred to

machine memory or drip fed (DNC). Conversely, files residing in CNC memory can be

sent to the data server where they can be accessed by anyone on the network.

File information is stored on an SD card resident on the LANCNC. A 2 GB SD card is

provided as standard. Other sizes may be substituted. In the event of a network outage,

the SD card may be removed and inserted into a PC. Files can be added or stored at the

PC and replaced in the LANCNC.

Note: Files should follow the 8.3 format for proper operation. e.g. File names should not

exceed 8 characters and the suffix should not exceed 3 characters.

Network Lag Protection

The LANCNC employes a unique design to provide network lag protection. CNC

controls can be extremely sensitive to the flow of data through the RS-232 port. Any

disruption to this flow can create problems in the part being machined or increase part

cycle times. To protect against this, the LANCNC-RMT always buffers the entire

program at the machine. The LANCNC-RMT is a dedicated computer that responds

immediately to changes in the data flow to and from the CNC resulting in the highest

possible throughputs.

Since the programs are buffered or stored on the LANCNC-RMT, the LANCNC-RMT

continues to run even if the network fails. If the network starts to lag or lose integrity, the

LANCNC-RMT will continue to run in real time. The SD memory card on the LANCNC

can also be removed and files can be added or removed at a PC if the network is

completely down.

Total Remote Access to Files

The LANCNC-RMT version provides total access to files that reside on a remote device.

The files can be stored on a computer running an FTP server, a 2TB network attached

storage device (NAS) or even on another LANCNC-RMT data server. The LANCNC-

RMT can initiate remote access from a CNC machine, an operator can view the

directories on a remote computer, select individual files to view file contents or copy a

file to/from the LANCNC SD card. Files can be loaded directly into the CNC's memory

or saved on the remote data server from the CNC's memory. The remote files can also be

sent via DNC to the CNC from the LANCNC-RMT.

SD Card Types and Sizes

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