
B–63682EN/01
28. DATA INPUT/OUTPUT
NC FUNCTION
205
Screen information displayed on the CNC can be output to a memory card
in a bit–mapped format. In this case, however, only still picture
information can be output. Bit–mapped data created by this function can
be displayed on a Windows personal computer and so forth.
To take a hard copy of a screen, set a memory card in the CNC, then hold
down the
SHIFT
key for five seconds or set hard copy start signal HDREQ
(G67 #7) to 1. In several seconds to several tens seconds until hard copy
operation completes, a still picture is displayed on the screen.
The number of colors of a created bit–mapped format file depends on the
display control card, LCD hardware, and the display mode of the CNC
screen. The relationships are listed in Table 28.5 (a).
Table 28.5 (a) Number of colors of bit–mapped format files created by screen hard copy
LCD
hardware
CNC screen
display mode
Number of
colors displayed
on CNC
Number of
colors in BMP
data
Remarks
Monochrome
—
2 colors 2 colors
Monochrome gradation is not sup-
ported.
VGA
card
Color
VGA
compatible
mode
Characters:
16 colors
Graphic:
16 colors
ParameterĆ
No.3301#0=0
³256 colors
ParameterĆ
No.3301#0=1
³16 colors
Ordinary CNC screen is displayed.
If parameter No.3301#0 is 1, colors
may differ from the screen display.
VGA mode 256 colors 256 colors Screen that can be prepared using C
executor.
Table 28.5 (b) shows the data sizes of bit–mapped format files.
Table 28.5 (b) Number of colors and data size of
bit–mapped format files
Number of colors in bit map
File size (bytes)
Monochrome (2 colors) 38,462
Color (16 colors) 153,718
Color (256 colors) 308,278
28.5
SCREEN HARD COPY