Ascii display, 10ć64 – Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL User Manual

Page 329

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The Objects

Chapter 10

10-64

An application file containing a Screen Print Button is not compatible with
Version 1 firmware.

The ASCII Display object is used to display a character string sent from a
PLC controller directly on the PanelView terminal. The display is updated
whenever the string changes.

Like any other PanelView object, it is placed on the screen and then
customized, given a size, character size, and color (on a color terminal) or
intensity (on a monochrome terminal).

Any character in the IBM extended character set can be displayed. See
Appendix E, The Extended Character Set.

Special control characters can be included, to affect the characters which
are displayed. The characters displayed are controlled exactly as specified
by the data in the string.

Characters are processed sequentially until a null character (all bits 0) is
received. Null is the string termination character; any characters after a
null are ignored.

The maximum string length is one block transfer write or 64 characters.

If only 10 displayable characters (not control characters) are in the string,
only 10 positions on the screen will be filled. Any previously existing text
anywhere within the display area will be unaffected.

Words wrap within the area defined for the ASCII Display object, but lines
do not wrap. If the character string is too long to be displayed the extra
characters are ignored.

For example, the display is defined as 10 characters wide by 3 characters
high. The characters are single height and single width. The string to be
displayed is “A long string for the ASCII display”

The object will show:

A long
string for

the ASCII

Note that the last word of the string is lost, because the object as defined
isn’t large enough for the whole string.

ASCII Display

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