User manual

DNC* Menu Selection

With DNC selection, a file on the ftp server memory can be sent directly to the CNC

while the control is in Automatic mode. This function provides a way to ‘run’ a program

off the ftp server memory. The first files shown on the display are files on the ftp server

memory from the most recently selected directory. Use the buttons on the right and the

left to highlight a particular file, highlight [type file] to type in a file name, or select a

new sub directory to display. Press the center button to make the selection desired.

*(DNC, Direct Numerical Control, may not be available on all CNCs. Check with the

machine’s User Manual to determine if this is available on the CNC control).

Shown in this example screen shot, the MOLD.TXT file is highlighted and selected.

Press the Start button. This will prepare the LANCNC for DNC or “drip feed operation”.

Next, place the CNC in Automatic or DNC mode. The LANCNC will begin sending the

file when the CNC is put in DNC or Automatic Mode. It is important to prepare the

LANCNC first when using software handshaking.

Auto-rewind: Once a file has been sent to the control, the LANCNC will “rewind” to the

beginning of the program. In order to repeat the file, simply press start again to machine

another part as many times as desired. Press the right button to cancel this operation and

return to the main menu.

Select Options to display the options menu as shown below in the example. The options

menu allows for mid-tape starts and preparatory lines to be added to the file that has been

selected.

Use the Mid-tape start option to do a block search of the file selected for DNC. DNC will

start at the block of NC code that contains the mid-tape text entered. For example,

suppose the operator were to type in N1000.2. DNC will begin when a block that

contains "N1000.2" is found. Note: An N word can be added to a single line of the file in

order to establish a starting block number.

Use the Preparatory data option to insert text before the file that is selected for DNC. For

example, the operator might want to make a tool change prior to running a file or position

- 5 -

DNC:MOLD.TXT

Opt. Start Cancel

[type file]

CNC16.TXT

>MOLD.TXT<

NEXTJOB<DIR>

DNC Options Menu

Mid- Prep-

tape Cont. data