Mercury 2+, Руководство пользователя

Страница: 41 / 82

Mercury 2+ Operator Terminal User Manual Page 41 of 82 2019r0
To select Graphics with Text or Graphics alone, see page 35. Note
that on Mercury terminals with text only, the enhanced software
described below is not available.
In Graphics mode, the display is made up of 64 rows of 40
columns. Each column position is a 'tile' made up of 6 pixels
across by 1 pixel in height.
No cursor is visible in graphics mode. As a tile is written, a virtual
cursor is incremented. The virtual cursor has its own set of
coordinates allowing access to graphics without corrupting text
currently displayed.
Coordinates are defined by the byte number and row number,
calculated from the top left corner of the display. With one byte
equating to 6 pixels, simple or bitmap images are positioned
horizontally from the 6 pixel boundaries.
Graphics may be downloaded as a bit­map image from off­line
Graphics Converter Software, available from Mercury HMI Ltd, or
designed directly on the display.
Each tile is individually accessible, and each pixel pattern is
uniquely mapped to an ASCII character, defined in Table 7 below.
In the table a ○ represents a clear, OFF state pixel, and a ●
represents a pixel in the energised, ON state. The pixel pattern is
read left to right.
Graphics Display
Mode
Graphics Display
○○○○○○
○○○○○●
○○○○●○
○○○○●●
○○○●○○
○○○●○●
○○○●●○
○○○●●●
○○●○○○
○○●○○●
○○●○●○
○○●○●●
○○●●○○
○○●●○●
○○●●●○
○○●●●●
SP
!
“
#
$
%
&
‘
(
)
*
+
,
­
.
/
○●○○○○
○●○○○●
○●○○●○
○●○○●●
○●○●○○
○●○●○●
○●○●●○
○●○●●●
○●●○○○
○●●○○●
○●●○●○
○●●○●●
○●●●○○
○●●●○●
○●●●●○
○●●●●●
0
1
2
3
4
5
6
7
8
9
:
;
<
=
>
?
●○○○○○
●○○○○●
●○○○●○
●○○○●●
●○○●○○
●○○●○●
●○○●●○
●○○●●●
●○●○○○
●○●○○●
●○●○●○
●○●○●●
●○●●○○
●○●●○●
●○●●●○
●○●●●●
@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
●●○○○○
●●○○○●
●●○○●○
●●○○●●
●●○●○○
●●○●○●
●●○●●○
●●○●●●
●●●○○○
●●●○○●
●●●○●○
●●●○●●
●●●●○○
●●●●○●
●●●●●○
●●●●●●
P
Q
R
S
T
U
V
W
X
Y
Z
[
\
]
^
_
Table 7
Graphics
Mode Pixel Data