Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL User Manual

Page 330

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The Objects

Chapter 10

10-65

A second string is sent while the first one is displayed. The string is: “This
shows how characters overwrite”.

This shows
how ng for

characters

Note that any character which was not directly covered by a new character
remained in the display. This feature can be useful for updating portions of
an ASCII display while leaving portions unchanged. If you want to clear
the display, or clear a line in the display, control characters for those
purposes can be embedded in the string.

To properly display the second string shown above, a “clear to end of
display” control sequence, ESC[J, could have been included at the
beginning of the string.

The string would then be: “ESC[J This shows how characters overwrite”,
which would display:

This shows
how

characters

See the table of control sequences, Table 10.V, and the description of
Invalid Control Sequences which follows it.

Move and Size

An ASCII display object can be any size from one line high by one
character wide, to 24 lines by 80 characters. Moving and sizing the object
is identical to the “Local Message Display”.

ASCII Display String Format

The format of the data string must be as in Table 10.U. Table 10.W lists the
ASCII character set. For more characters, see Appendix E, The Extended
Character Set
.

Table 10.U

ASCII String Format

Б

ББББББ

Б

ББББББББ

Bit

Б

БББББББ

Б

БББББББББ

15 8

Б

ББББББ

Б

ББББББББ

7 0

Б

ББББББ

Б

ББББББББ

1st word

Б

БББББББ

Б

БББББББББ

1st character

Б

ББББББ

Б

ББББББББ

2nd character

Б

ББББББ

Б

ББББББББ

2nd word

Б

БББББББ

Б

БББББББББ

3rd character

Б

ББББББ

Б

ББББББББ

4th character

Б

ББББББ

Б

ББББББББ

Б

БББББББ

Б

БББББББББ

Б

ББББББ

Б

ББББББББ

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